MoLE ConCepT in 40 mins : CBSE / ICSE : CHEMISTRY : Class 10, Class 11, Class 12

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  • Опубликовано: 7 окт 2024
  • Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
    Download the App from Google Playstore ( bit.ly/2SHIPW6 )
    Physicswallah Instagram Handle : / physicswallah
    Physicswallah Facebook Page: / physicswallah
    Physicswallah Twitter Account : Ph...
    Physicswallah App on Google Play Store : bit.ly/2SHIPW6
    Physicswallah Website:
    LAKSHYA Batch(2020-21)
    Join the Batch on Physicswallah App bit.ly/2SHIPW6
    Registration Open!!!!
    What will you get in the Lakshya Batch?
    1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
    2)Live Classes and recorded Video Lectures (New, different from those on RUclips)
    3)PDF Notes of each class.
    4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
    5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
    6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
    7)In case you missed a live class, you can see its recording.
    8)You can view the videos any number of times.
    9)Each chapter will be discussed in detail with all concepts and numericals
    10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
    ***Test Series for XI & XII***
    We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
    The test series follows very logical sequence of Basic to Advance questions.&
    Evaluation of Test and Solution to all the questions at the end of the test.
    MoLE ConCepT in 40 mins : CBSE / ICSE : CHEMISTRY : Class 10, Class 11, Class 12
    • MoLE ConCepT in 40 min...
    MOLE Concept in 6 mins : Class X CBSE / ICSE :
    • MOLE Concept in 6 mins...
    MOLE CoNcEpT : STOICHIOMETRY : Class X , XI , XII : CBSE /ICSE
    • MOLE CoNcEpT : STOICHI...
    MolecuLar FormuLa and EmperiCal Formula | Percentage CompositioN | Class 10 , 12 ICSE / CBSE
    • MolecuLar FormuLa and ...
    Mole ConcepT 01 | How To CalcuLate Number of Moles | Mass Volume Relationship | Revision
    • Mole ConcepT 01 | How ...
    How to BALANCE any Chemical Equation - ABCD Method | Best Way to Balance Chemical Equation
    • How to BALANCE any Che...
    Mole Concept || Class 9,10,11 || Stoichiometry || Percentage Composition | Compilation Of OLd Videos
    • Mole Concept || Class ...

Комментарии • 19 тыс.

  • @PhysicsWallah
    @PhysicsWallah  6 лет назад +3551

    Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
    Download the App from Google Playstore ( bit.ly/2SHIPW6 )
    Physicswallah Instagram Handle : instagram.com/physicswallah/
    Physicswallah Facebook Page: facebook.com/physicswallah
    Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20
    Physicswallah App on Google Play Store : bit.ly/2SHIPW6
    Physicswallah Website: physicswallahalakhpandey.com/
    LAKSHYA Batch(2020-21)
    Join the Batch on Physicswallah App bit.ly/2SHIPW6
    Registration Open!!!!

    What will you get in the Lakshya Batch?
    1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
    2)Live Classes and recorded Video Lectures (New, different from those on RUclips)
    3)PDF Notes of each class.
    4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
    5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
    6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
    7)In case you missed a live class, you can see its recording.
    8)You can view the videos any number of times.
    9)Each chapter will be discussed in detail with all concepts and numericals
    10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
    ****Test Series for XI & XII****
    We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
    The test series follows very logical sequence of Basic to Advance questions.&
    Evaluation of Test and Solution to all the questions at the end of the test.
    MoLE ConCepT in 40 mins : CBSE / ICSE : CHEMISTRY : Class 10, Class 11, Class 12
    ruclips.net/video/bI-yhj9WgxQ/видео.html
    MOLE Concept in 6 mins : Class X CBSE / ICSE :
    ruclips.net/video/WGSGtdglZzg/видео.html
    MOLE CoNcEpT : STOICHIOMETRY : Class X , XI , XII : CBSE /ICSE
    ruclips.net/video/Qk2q1KaVUFA/видео.html
    MolecuLar FormuLa and EmperiCal Formula | Percentage CompositioN | Class 10 , 12 ICSE / CBSE
    ruclips.net/video/nX1b6GEJ8XU/видео.html
    Mole ConcepT 01 | How To CalcuLate Number of Moles | Mass Volume Relationship | Revision
    ruclips.net/video/fAJg1HaI8T4/видео.html
    How to BALANCE any Chemical Equation - ABCD Method | Best Way to Balance Chemical Equation
    ruclips.net/video/7Wx1ooWnjQ0/видео.html
    Mole Concept || Class 9,10,11 || Stoichiometry || Percentage Composition | Compilation Of OLd Videos
    ruclips.net/video/omuhMcN9z-M/видео.html

  • @Two0220abxcbs
    @Two0220abxcbs 3 года назад +5085

    Success level : *you start all alone and now u have a great team of teachers*
    *RESPECT+++*

    • @shesuiuchiha7074
      @shesuiuchiha7074 3 года назад +21

      San Andreas respect ++👌👌

    • @glovers1st839
      @glovers1st839 3 года назад +40

      But the team is useless🙄. There is no comparison between sir and his team. Sir is teaching 1000% good than his team😌. I think sir's old video is brilliant than his hire teacher. I don't think sir take a good step after hire a team of teachers.😒

    • @captainjohnny
      @captainjohnny 3 года назад +4

      Here we go again !!

    • @Ayush5274-b3p
      @Ayush5274-b3p 3 года назад +34

      @@glovers1st839 it is not good to say useless because their teaching methods may be not good but their intention is to provide a better education to us

    • @onkareshwarsharma637
      @onkareshwarsharma637 3 года назад +9

      @@glovers1st839 they are not completely useless but yes i get your point..... thats why we are watching this video

  • @khushisabharwal5173
    @khushisabharwal5173 6 лет назад +5911

    India needs science teachers like you...school teachers should watch your videos...they r just bothered about getting paid ...and here we have alakh sir who inspite of living far away frm us is teaching us with all his heart..thankyou sir for your efforts..your hard work will definitely help us to score excellent grades...you have become the king of your students...your efforts are highly appreciated sir...thankyou so much 😊

    • @roshanslim3432
      @roshanslim3432 6 лет назад +127

      yOU TUBE pays him dosent it

    • @PhysicsWallah
      @PhysicsWallah  6 лет назад +4386

      thanx
      no , the payment from you tube is very mere uptill now , the time I put in I earn 10 times of this when I put the same time at my institute. But it's not about money only. I feel positive to do this

    • @sumaiyaansari5155
      @sumaiyaansari5155 6 лет назад +205

      +Physics Wallah wow sir ab ja kr concept clear hua h Thank you very much sir.....

    • @yashkushwaha6904
      @yashkushwaha6904 6 лет назад +66

      Sir ki hobby ha

    • @tahirch1212
      @tahirch1212 6 лет назад +51

      Khushi Sabharwal u r right😇😇😇

  • @_swastikmishra
    @_swastikmishra Месяц назад +233

    Anyone here in September 2024…?

  • @luckyevolve404
    @luckyevolve404 5 дней назад +3

    7 years old video still helping and will be helping students to clear boards exam, JEE and NEET

  • @saynabishnoi29
    @saynabishnoi29 3 года назад +13158

    Who was confused in mole concept in 9th standard but ignored that time 😋
    but come here in regret (11th science )😂😂👍

  • @ShivamSrma
    @ShivamSrma 4 года назад +3421

    He didn't knew at that time that he's gonna be the most loved physics teacher in India.
    Edit 1 : Not only in India !!!
    Edit 2 : Me didn't knew too I will get 1k likes on my comment XD....Thanking all of you !

    • @priyanshubaghel5817
      @priyanshubaghel5817 4 года назад +16

      Absolutely correct

    • @philanthropist2010
      @philanthropist2010 3 года назад +29

      Class 12th clearing backlog😥anyone?

    • @ayushtiwari8904
      @ayushtiwari8904 3 года назад +4

      Hn bhai sahi bolaa

    • @__SoLo
      @__SoLo 3 года назад +6

      @@philanthropist2010 same

    • @ShivamSrma
      @ShivamSrma 3 года назад +15

      @@philanthropist2010 Nahi ..Class 11th.But Bahut late chal raha hoon :(

  • @trishasharma9437
    @trishasharma9437 3 года назад +3020

    Hats off to his struggle❤️
    This man owns every students heart!

    • @XD-he6ep
      @XD-he6ep 3 года назад +15

      is your term 1 exams approaching and u came here to clear concepts by Alakh sir????

    • @RajanGupta-cj4zm
      @RajanGupta-cj4zm 2 года назад +9

      @@XD-he6ep bro starting from 1st chap ...and now m very depressed

    • @madhurbhargava7781
      @madhurbhargava7781 2 года назад +3

      @@RajanGupta-cj4zm Me also bro . I found this chapter most confusing

    • @RajanGupta-cj4zm
      @RajanGupta-cj4zm 2 года назад +1

      @@madhurbhargava7781 yeh

    • @हर्षसिहमार
      @हर्षसिहमार 2 года назад +1

      Hatt us really off 🤣🤣🤣🤣

  • @ankurgarje4986
    @ankurgarje4986 6 месяцев назад +431

    Who else are here for the mole concept for 2024 to 2026 batch whose mole concept was deleted from syllabus in class 9th😂❤

  • @nayyar7155
    @nayyar7155 Год назад +8956

    Who else are here for Neet/Jee 2023-2025 batch!??? (Now in 11th) ❤❤

  • @cambridgehomeloan
    @cambridgehomeloan 2 года назад +376

    If "CHEMISTRY" students start making films,
    *Tera acid mera base
    *Rang de benzene
    *Humara beaker aapke pas hai
    *Life in a Hetero
    *Laaga apron me daag
    *3 test tubes
    *Ajab estimation ka gajab result
    *Munna bhai HCL
    *Mr. Ketone
    *Jab we experiment...!
    😜😜Dialogue baazi in chemistry..
    *My name is BOND...Covalent Bond!
    *Rishtey mein to hum tumhare Allotrope lagte hain,naam hai...Diamond!
    *D-block se darr nahi lagta saheb, F-block se lagta hai!
    *Ek baar jo maine bond toda to main activation energy ki bhi nahi sunta!
    *Resonance ko neglect karna mushkil hi nahi na mumkin hai!
    *Ye electron mujhe dede Carbon!
    *Ek neutron ki keemat tum kya jano Hydrogen Babu!
    To all science students
    😂😂😂😂😂😂😂😂
    Just for u...

    • @mohammedfardeen2578
      @mohammedfardeen2578 Год назад +22

      What a sign of creativity dude
      I mean.... Yeah sab sochte kese ho??

    • @komalshandilyaa
      @komalshandilyaa Год назад +10

      Bhai Agar yahi dimag padhai meh lga leta na toh ajj top krta tu🙂

    • @satyammaurya78
      @satyammaurya78 Год назад +14

      @@komalshandilyaa creativity ki koi izzat hi nhii hai

    • @cutie9231
      @cutie9231 Год назад +1

      Haaaaaaaa

    • @levidah7291
      @levidah7291 Год назад +12

      padhle bhai saste joke marne se ghar nhi chlta 🗿

  • @IvanLucas
    @IvanLucas Год назад +2557

    Who else agree with me that these recorded videos of alakh sir are infinite times better than any other live classes

    • @cjffofgxjgdhk9215
      @cjffofgxjgdhk9215 Год назад +11

      Yes

    • @shauryasahu1618
      @shauryasahu1618 Год назад +41

      Vo sab to thikk h but bhyi tum 10th ke result se pehle hi 11th start kar diye...🙂 salute

    • @tonami17
      @tonami17 Год назад +17

      ​@@shauryasahu1618 bhai mai 12th ke baad padh rha

    • @singhrhythmjit1283
      @singhrhythmjit1283 Год назад +7

      @@shauryasahu1618 and bhi i am now in 11th i want watch this because of preparation of jee

    • @amrendrapratapsingh7464
      @amrendrapratapsingh7464 Год назад +13

      Yup Neet Aspirant here 🎉

  • @RageLuffy
    @RageLuffy 14 дней назад +8

    Exam tomorrow
    👇

  • @Sariffjaat7654
    @Sariffjaat7654 Год назад +1164

    No introduction, no ads no timewaste only pure chemistry which got 7.6 million❤❤

    • @nameless3114
      @nameless3114 Год назад +19

      There are ads dude

    • @HS-zb3ud
      @HS-zb3ud Год назад +31

      that ads are not given by sir , he is trying to say he is not promoting any thing not even his app

    • @rajputjay3036
      @rajputjay3036 Год назад +6

      Now 8 million

    • @architchauhan8267
      @architchauhan8267 Год назад

      ​@@rajputjay303610

    • @iconic.starsz
      @iconic.starsz Год назад +2

      And 8.1m now;)

  • @ayushrajput3475
    @ayushrajput3475 2 года назад +234

    Got deserving success... Like he explained one of the toughest topic MOLE CONCEPT when a child comes to class 11 with such a vast syllabus just in 40 mins, along with numericals and of course great explanation.... First time here and forced to write such a long comment .... You Nailed🥵

  • @dynamicadithya1902
    @dynamicadithya1902 Год назад +251

    Anyone from 2023-24 batch? But dude ngl this one video cleared my ALL doubts on mole concept, THANK YOU SO MUCH SIR!

    • @awanzzn
      @awanzzn Год назад +1

      What are you preparing for ?

    • @dynamicadithya1902
      @dynamicadithya1902 Год назад +2

      @@awanzzn JEE 2025 and wbu

    • @ADI-en7jg
      @ADI-en7jg Год назад +2

      @@dynamicadithya1902 Bro same

    • @CoralineYann
      @CoralineYann Год назад +1

      @@awanzzn neet 2025

    • @awanzzn
      @awanzzn Год назад +1

      @@CoralineYann all the best 👍🏻

  • @sujatatoppo7646
    @sujatatoppo7646 6 месяцев назад +1397

    Anyone for neet/jee 2026 👀🤝🏻

  • @_h4_harshit
    @_h4_harshit 6 месяцев назад +2116

    Who is here for 2024-2025 😅 batch students for basics of 11th

  • @abhinavawasthi8731
    @abhinavawasthi8731 3 года назад +210

    The only teacher who pays more attemtion on teaching than the comment section .
    Never commented on anyones comment neither he even liked any comment .
    Thats our wallah

    • @danksbrother
      @danksbrother 3 года назад +2

      True!!!!!

    • @RKANISHK
      @RKANISHK 3 года назад +7

      ABD de villers ke fan hoo kya

    • @alertsaucer4104
      @alertsaucer4104 3 года назад +3

      bruh how dumb can you be. A teacher should always see the doubts, it means he is ignoring the comment section

    • @aaditrisingh3993
      @aaditrisingh3993 7 месяцев назад

      Ha dada

    • @bhaveshrangrej2797
      @bhaveshrangrej2797 7 месяцев назад

      Konsa clg mila bhai aapko?

  • @abhijeetmohan6688
    @abhijeetmohan6688 8 месяцев назад +259

    Even after 6 years it's helping the students 😮 Salute to you alakh sir 🫡😊

  • @Shah-e-mesoorShah-e-mesoor
    @Shah-e-mesoorShah-e-mesoor 12 дней назад +8

    Who is in batch 24 25 (11th )😊

  • @vanshikasharma8064
    @vanshikasharma8064 3 года назад +13114

    Who is here in 2021?? 😂

  • @tejasgaming1375
    @tejasgaming1375 5 лет назад +593

    Sir u r awesome teacher😎😎
    Never ever seen a teacher teaching
    Like u😌😌
    Is everyone agree with me?

  • @Pushkarsharmaswarn
    @Pushkarsharmaswarn 4 года назад +885

    One of the best teacher on RUclips Sir helping lot in this lockdown

    • @elwindas4502
      @elwindas4502 4 года назад

      ruclips.net/video/ckAjxpTMuX8/видео.html

    • @studywithssr338
      @studywithssr338 4 года назад +1

      ruclips.net/p/PLI8IC_K5WGXKGfxf_aMjRihKF8LhbKLBu
      Best video for Co-ordination Chemistry

    • @heenalmehta3042
      @heenalmehta3042 4 года назад +5

      Have to agree

    • @gajulasreevennela6883
      @gajulasreevennela6883 4 года назад +3

      And dear sir also for math English

    • @elwindas4502
      @elwindas4502 4 года назад +2

      @@gajulasreevennela6883 I want your support, if your like it , then hit like button, and share , because you don't knw your ine share help anyone to get education
      ruclips.net/video/fr21t1AvoJA/видео.html

  • @RENUGope-sz5hd
    @RENUGope-sz5hd 3 месяца назад +57

    Anyone from 2024 batch class 11th ?🌿

  • @tanusharma4115
    @tanusharma4115 5 лет назад +530

    Sir,I can only say that 'best' has four letters and 'alakh' has five it means
    "Alakh is more than best"
    Sir,u r the best teacher of chemistry and physics

    • @magiccraft7645
      @magiccraft7645 5 лет назад +35

      In this way my name has 6 letters so i am far more better than best🤣

    • @fairywings24
      @fairywings24 5 лет назад +5

      Agreed

    • @yogitthakur9999
      @yogitthakur9999 5 лет назад +11

      My name has 10 letter so how much I talented 🤣🤣plzz tell me

    • @ranjankumari1393
      @ranjankumari1393 5 лет назад +18

      Iss hisaab se toh mai EINSTEIN se bhi zyaada samajhdaar hua 😂😂

    • @syeduzair74
      @syeduzair74 5 лет назад +1

      @@magiccraft7645 🤣🤣🤣🤣😘

  • @rksoni2210
    @rksoni2210 4 года назад +411

    Heyyyy bhagwaan; kyaaaaa teacher hai 😭😭😭😱😱. Mujhe Aaj Tak ye topic palle nahi pada par sir ne to makkhan ki tarah padha diya. Bhai kamaaal h sir aap. Koi shabd nahi h sir aapke liye bus Dil se duayein hai....🙏🙏🙏
    Love you sir jiiiii😍😍😍

  • @awwwnn7
    @awwwnn7 2 года назад +574

    I literally spent my precious hours trying hard to understand this chapter until I found this video of yours.
    Alakh Sir you are a blessing for us students. No matter how much I thank you it's less.
    You Truly are the best teacher we can ever have in this world.
    Thank you so much sir.
    May God Bless You ❤️🙏

  • @krrishh.08
    @krrishh.08 20 дней назад +9

    Kon kon 2024 mein dekh rha hai 😅

  • @sks8623
    @sks8623 Год назад +567

    Bro literally I am there in 2023 and still found it easy to understand. Hats off Alakh Sir ❤❤

    • @Sk_2006.
      @Sk_2006. Год назад +2

      Same bro..❤

    • @omshreenayak1691
      @omshreenayak1691 Год назад +2

      Same here

    • @ahmarali8588
      @ahmarali8588 Год назад +8

      Time span se difficulty level change nahi hogai same hoti hai😅

    • @sks8623
      @sks8623 Год назад +1

      @@ahmarali8588 wahi to but PW ka content bhi to purana nhi hota!

    • @fshamshadlone13
      @fshamshadlone13 11 месяцев назад

      Really it is very simple teaching with 100% understanding.

  • @varuntiwari5868
    @varuntiwari5868 Год назад +219

    In class 10, I heard that alakh sir's old lectures are like treasury for students. In class 11 I realised it
    Love u Alakh sir !!

  • @ajaypandey8675
    @ajaypandey8675 4 года назад +760

    One of the best teacher on RUclips.
    Helping a lot in this lockdown.

  • @starklinegaming6219
    @starklinegaming6219 13 дней назад +4

    Who is my competitor😅 from batch 2024-25 😊😊 give your attendance😂

  • @akash__69
    @akash__69 4 года назад +1440

    Those who seeing this in APRIL 2021 like others comment.
    Edit:- itne saare log hai Jo sirf exam k wakt suru karte hai😱
    Can't expect this much likes.

  • @PhysicsWallah
    @PhysicsWallah  5 лет назад +1049

    Free Assignments and Notes physicswallahalakhpandey.com/

    • @chaoticyatan7115
      @chaoticyatan7115 5 лет назад +44

      Thank you so much....
      India needs people like you, who want education to be free for everyone....

    • @prasantpanda5680
      @prasantpanda5680 5 лет назад +11

      Sir, aap ne 17:20 mein molar mass kyon nikala? Hum to directly given mass Ko atomic mass se divide karke simply no. of atoms la sakte hain na...........

    • @samadhanpawar92
      @samadhanpawar92 5 лет назад +11

      Physics Wallah - Alakh Pandey 😘😘😘😘

    • @shivanityagi5996
      @shivanityagi5996 5 лет назад +6

      Ye rule sabhi elements k liye valid nhi h

    • @manojupadhyay6614
      @manojupadhyay6614 5 лет назад +9

      i am in class 9 and it is very useful for me

  • @karmandeep
    @karmandeep 3 года назад +643

    One thing is missing in this lecture
    The motivation sound at starting: "HELLO BACCHOOO"

    • @kulwinderkaur780
      @kulwinderkaur780 3 года назад +13

      Because it is an old video.

    • @subhhyt2687
      @subhhyt2687 3 года назад +9

      It's his style😂

    • @blackxteam8403
      @blackxteam8403 3 года назад +23

      you are wrong its 'helooo bachoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo'

    • @abhishekpatil2690
      @abhishekpatil2690 3 года назад +14

      Bro tab hello baccho ka invention nhi hua tha 😂❤️

    • @zahrazohra6376
      @zahrazohra6376 3 года назад +4

      Yeah that's missing ❤️

  • @AsprihaMukherjee-oh9ku
    @AsprihaMukherjee-oh9ku 3 месяца назад +5

    Wonderful explanation. Will definitely recommend this to my juniors and friends. Thank you so much Alakh Sir.

  • @executecodes4453
    @executecodes4453 4 года назад +1660

    Who’s watching this in 2020 . . .

  • @sanskritguruadarsh8795
    @sanskritguruadarsh8795 4 года назад +307

    Since class 9th I wasn't able to understand this concept and now I'm in 11 and wanted to learn the same concept as my teacher told it's important to revise the concept I came here and in just 40 mins u did that which couldn't happen in last 2 years . Really u are great . Thanks a lot sir .

    • @dhruvkumarkanaujia
      @dhruvkumarkanaujia 4 года назад +2

      @Rishav SINGHANIA 😂😂😂

    • @___9370
      @___9370 4 года назад +1

      Same situation

    • @mohammadzaid9608
      @mohammadzaid9608 4 года назад +1

      Arpita can we study whole 11th class on RUclips with physicswallah sir only for science

    • @dhruvkumarkanaujia
      @dhruvkumarkanaujia 4 года назад +1

      @@mohammadzaid9608 yes
      Definitely!! I'm in 11th also ...

    • @mohammadzaid9608
      @mohammadzaid9608 4 года назад +1

      @@dhruvkumarkanaujia but bro how do you know 🤷🏻‍♂️that this is workfull means is we can do our refrence book's or our schl exam's by this

  • @sheevamzha
    @sheevamzha Год назад +379

    He is a physics professor and teaching chemistry like a pro 👍👍

  • @Menendrashing
    @Menendrashing 11 дней назад +3

    Thank you so much sir❤

  • @ArcaneArtist13
    @ArcaneArtist13 3 года назад +915

    not gonna lie, by the end of this video I was able to solve these kind of questions orally and very quickly. Thank you sir for making this viodeo.

    • @sumitdhiman6244
      @sumitdhiman6244 3 года назад +24

      Viodeo

    • @simransagar6764
      @simransagar6764 3 года назад +13

      Vieodio

    • @Akshaan7
      @Akshaan7 3 года назад +9

      Veodio

    • @Mrdangi3695
      @Mrdangi3695 3 года назад +8

      Trust me it is very helpful :
      Class 11 Chemistry : Ch -1 short notes of physicswallah in (2-3 pages) 💯|| (Link in description)🌦️
      ruclips.net/video/T6RR5OxLXbA/видео.html

    • @simransagar6764
      @simransagar6764 3 года назад +5

      @@ayaankoth1457 vieodio

  • @tejaswinisclasses1173
    @tejaswinisclasses1173 5 лет назад +275

    Our country is looking for teachers like you,sir...
    THANKS A LOT

  • @raavishukla7448
    @raavishukla7448 2 года назад +67

    Years after years passed.....
    But all these old videos of Alakh sir are a booster to an average student.....
    Thanks a lot sir 🙏🙏🙏🙏🙏🙏

  • @AyushKumar-j8d6w
    @AyushKumar-j8d6w 6 месяцев назад +23

    At 24:00
    Sir,
    H4 molecule ke 2 mole hai to H atom ke 2x4=8 moles honge.
    Aapne 4 moles of H likha hai and 8 moles of H hai to total number of H atoms are 8 x 6.023 x 10^23
    and that's why total mass of 8 moles of H atoms will be 8 x 6.023 x 10^23 amu.

    • @oceanheart06
      @oceanheart06 5 месяцев назад

      ek hydrogen atom ka atomic mass 1 hota hai

    • @navyakhanna8194
      @navyakhanna8194 5 месяцев назад +4

      Yes I was thinking the same there are 2 moles

    • @MahipalSharma-qe9yg
      @MahipalSharma-qe9yg 3 месяца назад

      One atomic mass value of hydrogen one hi hoti hai.. if the value would be H2 then 2 moles value hoti.. but yaha pr H4 Hai.. it means = 1×4 = 4

    • @neggaman-r9f
      @neggaman-r9f 2 месяца назад

      haan bro mai bhi yehi sochra tha 🌹
      fir mai google pe gaya and wapas aaya and aapka comment dekha...thanks

    • @drishe08
      @drishe08 27 дней назад

      Ya exactly kyuki methane ka mole 2 hai toh 1 kyu liya

  • @mdtauseefakhtar6316
    @mdtauseefakhtar6316 6 лет назад +103

    My journey with Physics Wallah HAD STARTED WITH THIS VIDEO when sir has only 3k subscribers..........
    Thank You Again Sir............
    For your efforts and help...

    • @successlife4123
      @successlife4123 5 лет назад +4

      he went from 3k to 806k in 6 months 🙄... dedication and hardwork do pay off 👌✌️

    • @simyshukla4037
      @simyshukla4037 5 лет назад +1

      @@successlife4123 soon 1M💕💕😘😘😅😅😅

    • @sheleshverma725
      @sheleshverma725 5 лет назад

      tq u sir

    • @hei7846
      @hei7846 5 лет назад

      @@sheleshverma725 u also have chemistry paper on 22

    • @vimalkantjuyal6666
      @vimalkantjuyal6666 5 лет назад

      @@simyshukla4037 Ho ge 1M😇😇😇😎😎😎

  • @vaishalibamane8106
    @vaishalibamane8106 4 года назад +140

    The only difference between normal teachers and him is, they want to finish the syllabus and this guy wants to finish all the doubts of Students 🤘🤘.
    Hats off sir.

  • @aniketkumar5089
    @aniketkumar5089 5 лет назад +3011

    I edited the comment so no one knows what got it so many likes

  • @royalgamming2864
    @royalgamming2864 4 месяца назад +58

    This Video is still worth it now in 2024 June

  • @nishusharma1373
    @nishusharma1373 6 лет назад +158

    Sir
    i have newer seen an explanation like this
    no time wasting
    great explaination
    perfect examples
    I really like your video
    and i have shared this video to all my friends to help them toooo.....
    again
    thankyou sir

  • @Neolvlyofficial
    @Neolvlyofficial 2 года назад +145

    mole concept was always confusing sir and school teachers made it more confusing but you are very crystal clear on these terms

  • @priyanshu8962
    @priyanshu8962 Год назад +64

    Sir i admire you so much
    You are my inspiration.
    When the professor of the institute where i go teaches the same part , then i didn't understand.
    But when i had seen your lecture on this topic, my mind changed from a black stone to a crystal clear mirror.
    Thank you so much sir ❤️
    Love by- jee aspirant 2025
    Now in class 11 in 2023

  • @Sakshi_singh_3434
    @Sakshi_singh_3434 13 дней назад +2

    Thus video has been uploaded 6 years ago but still it is helpful for students
    Salute to Alakh sir
    Sir thankyou so much 💞
    Love you sir
    Sir you are A in lakh❤❤❤❤

  • @ashishjoshi2277
    @ashishjoshi2277 4 года назад +564

    Don't waste your time reading comments
    Hope this helps u.... 😀

  • @Pubali436
    @Pubali436 3 года назад +46

    Ek like toh banta hain Dil se ❤️He is working hard only for us . Thank you sir😊❤️

  • @newly__rise
    @newly__rise 12 дней назад +7

    2024 anyone ❤

  • @happinessiseverything3443
    @happinessiseverything3443 4 года назад +85

    I miss HELLOOO BACHOOOO 😅😅, btw lecture was awesome, sir makes everything crystal clear 😍😍

  • @mearnavchauhan
    @mearnavchauhan 2 года назад +49

    Hello sir. I am an Arts student now. But I used to watch your videos back when I was in 10th standard and It had always served me well.
    Mesmerised by your teaching and explanatory skills , I used to believe that you were wasting your life here on RUclips while making the lives of thousands.
    I am more than overwhelmed to see where you have reached in your life. Thank you sir for teaching us.
    God bless you! ❤️

  • @quiz_challenges_724
    @quiz_challenges_724 12 дней назад +4

    Meh ye 2024 me dekh rha hu ye video 25 September ko

  • @yugjoshi1568
    @yugjoshi1568 4 года назад +15

    I also salute that type of teacher which can clear my all doubts of mole concept (IIT JEE 2021)

  • @PRATANUBHATTACHARYYA-nk5cz
    @PRATANUBHATTACHARYYA-nk5cz 11 месяцев назад +74

    Alakh Sir is a professor of physics,but his teachings of chemistry are also remarkable.This video is 6 years old but students like me will be aspired by his teachings.
    Thank you so much sir.

    • @chinmayasahoo5812
      @chinmayasahoo5812 9 месяцев назад

      😂😂😂 Abey chumtiye professor k liye PHD with NET chahiye samjha gadhe ka baccha

  • @saketsamota8837
    @saketsamota8837 3 года назад +155

    Who became 😲😲😲 after seen physics wallah in gajani look😉

  • @umbot277
    @umbot277 22 дня назад +9

    ICSE BATCH 2024-2024 ☠️

  • @M_J_9_7
    @M_J_9_7 3 года назад +75

    *A small tip for viewers*
    *Who just started this video , I request* *them to watch the complete video*
    *guys I was struggling with this concept* *from few days and many of* *our class students have already done* *this in their foundation courses*
    *And this is the best video I found in utube and this far better than the rest*

    • @friakii
      @friakii 3 года назад +2

      Seriously...same happened with me

    • @aryasingh1020
      @aryasingh1020 3 года назад +2

      Yes ,you are correct ☺️

    • @bhoomiisahay
      @bhoomiisahay 3 года назад +3

      @@friakii legit same

    • @Slayclay1
      @Slayclay1 3 года назад +1

      I studied mole concept very well in 9th ngl , our coaching teacher had done b tech from iit roorkee and he taught us many things of 11th like molarity , molality , formality , normality and advanced bohr model which contains epsilon not 😅 . I m in 10th and i didnt remeber much about that 1/4π Epsilon not ×ze×e/r² ...... , It was very tough for me so i left most of the part .......
      Also 1st time when i went in my coaching (vmc) in 8th class , i was so damn confused that what was sir teaching , that was far away from my syllabus and i learned that in 10th .......... , It was ion electron method of solving redox reaction , yeah i learned in 10th 😬 .

    • @Slayclay1
      @Slayclay1 3 года назад +1

      I have also studied pH calculation , basics of log concept which is necessary for finding pH and few small small concepts of 11th , idk why but i only like chemistry out of the 3

  • @RenuSharma-br2rd
    @RenuSharma-br2rd 4 года назад +437

    One thing is missing in this lecture:
    Sir's motivational smile 🙄🙄

  • @Jbn2635
    @Jbn2635 4 года назад +205

    🌟 One of the best teacher in RUclips. Who is helping us in lockdown. 🌟

    • @navneetkaurkahlon7095
      @navneetkaurkahlon7095 4 года назад +5

      Bro he is not one of the best he is best🤘

    • @Jbn2635
      @Jbn2635 4 года назад +3

      @@navneetkaurkahlon7095
      My mistake.
      I apologies, Ms. Kaur.

    • @PNCM
      @PNCM 4 года назад +2

      What do you mean by was both lockdown and him are both alive

    • @anmol344
      @anmol344 4 года назад +2

      Yes bro

    • @rohitdalai6251
      @rohitdalai6251 4 года назад +3

      Why you used was in Your comment @Jagbandhu Nayak
      Still he is Helping us In Lockdown by Teaching in Alpha Series

  • @EhhshHdj
    @EhhshHdj 5 месяцев назад +71

    2024 may any here😅😅😅

  • @dhruvsingh5064
    @dhruvsingh5064 4 года назад +120

    सर कभी-भी physics and chemistry समझ नहीं आयी BSc भी2010 में रट के कर लिया teution nhe पढ़ पाये घर की स्थिति ठीक नहीं है लेकिन अगर हम करोड़ पति होते तो कम से कम 90% money आप पर कुर्बान कर देते क्योंकि आप का काम middle family ke students के लिए एक बरदान है you are a god for me and many poor students 🙏🙏 लोगों को अपने जीवन में चार धाम केदारनाथ धाम बद्रीनाथ धाम साईं बाबा मंदिर जाने की इच्छा होती है लेकिन मेरी एक ही इच्छा है कि एक बार आप के face to face दर्शन हो।आप को मैंने अपनी हैसियत के अनुसार बहुत ही कम रूपए बताते भी शर्म आ रही है 50 sent kiye pata nhe aap ko mil paye ya nhe ......lv u tooo always.....❤️❤️❤️❤️

    • @rajendravyas7736
      @rajendravyas7736 4 года назад +2

      Ha Sahi he😭

    • @anshushukla_
      @anshushukla_ 3 года назад +2

      😭😭😭

    • @aditi1467
      @aditi1467 3 года назад +7

      Isme shrm ki koi bt hi nhi h...ap jitna de skte the utna diya...aur keemat nhi shraddha bhav mayne rkhta h apne saf dil se diya bht h ❣️

    • @vilasrathod3463
      @vilasrathod3463 3 года назад +4

      Sir, apne hum jaise student ki indirect help ki hai.... Apne to hmara dil jit liya...

    • @himanshurajpoot5251
      @himanshurajpoot5251 3 года назад +2

      @@aditi1467 right

  • @nainapathak1055
    @nainapathak1055 2 года назад +124

    Who's here to revise these concepts in 2022??😁
    High respect to alakh sir. Aapke liye dil se izzat aati h ❤️. You are amazing as a person also 🔥🔥🔥.

    • @speed_clique5150
      @speed_clique5150 2 года назад +1

      Here

    • @Sidguru101
      @Sidguru101 2 года назад +1

      I'm trying to learn from scratch, it's confusing af need a lot of practice but I'm sure i can do it. Any tips how to get better?

    • @shivee175
      @shivee175 2 года назад +1

      Me 😂

    • @pranav581
      @pranav581 2 года назад

      Ha brother Arjuna jee batch sey hu

  • @PritamPRATAP-po2oc
    @PritamPRATAP-po2oc 4 месяца назад +1

    Molar Mass:
    First, we need to know the molar mass of methane (CH4). Each element in the molecule contributes its atomic mass to the overall molar mass.
    Carbon (C) has an atomic mass of approximately 12 g/mol.
    Hydrogen (H) has an atomic mass of approximately 1 g/mol.
    In CH4, there's one carbon atom and four hydrogen atoms.
    Therefore, the molar mass of CH4 = (12 g/mol for C) + (4 g/mol for 4H) = 16 g/mol.
    Number of Moles of CH4:
    We have 32 grams of CH4.
    Using the molar mass we just calculated (16 g/mol), we can find the number of moles of CH4 present:
    Moles of CH4 = Mass of CH4 / Molar mass of CH4
    Moles of CH4 = 32 g / 16 g/mol = 2 moles
    Mass of Hydrogen in CH4:
    Each molecule of CH4 contains 4 hydrogen atoms.
    Since we have 2 moles of CH4, the total number of hydrogen atoms:
    Total H atoms = Moles of CH4 * Number of H atoms per molecule
    Total H atoms = 2 moles * 4 atoms/molecule = 8 atoms
    Mass of H atoms:
    To find the total mass of hydrogen atoms, we need to multiply the number of hydrogen atoms by the atomic mass of hydrogen:
    Mass of H atoms = Total H atoms * Atomic mass of H
    Mass of H atoms = 8 atoms * 1 g/mol = 8 grams
    Therefore, there are 8 grams of hydrogen atoms present in 32 grams of methane (CH4).

  • @kuunaal20
    @kuunaal20 5 лет назад +232

    If anyone gets good marks in physics or chemistry credit goes to alakh sir ..
    #physicswallah 😎

  • @SomyaVermaa
    @SomyaVermaa 2 года назад +217

    One of the best lecture on mole concept n all the topics are crystal clear .....😌 THANKS TO ALAKH SIR☺️
    Tqsm for 200 likes😁👐

  • @narendrapachole3313
    @narendrapachole3313 4 года назад +307

    I have passed my 11 th in 2006 but today I understand moles concept.. Thank you

  • @shreyap5042
    @shreyap5042 Месяц назад +3

    18-19 batch student here.. you really helped me to score good in physics in my 10th ICSE BOARDS!! THANK YOU SO MUCH SIR!!

  • @binoykumarsingha5307
    @binoykumarsingha5307 Год назад +22

    A great thanks to Physics Wallah for this video. I had lots of confusion in this topic. But it's clear now👍

  • @priyanshpatel2363
    @priyanshpatel2363 5 лет назад +99

    Sir, I think you should start private classes because you teach everything very nicely and India needs teachers like you. I am in 12 th and I got 96 in chemistry just because of you.

    • @vaashusaini1371
      @vaashusaini1371 5 лет назад +2

      Priyansh Patel osm marks

    • @sportsclub4823
      @sportsclub4823 5 лет назад

      Oh

    • @gurralasrilakshmi3434
      @gurralasrilakshmi3434 5 лет назад +5

      Priyansh if he could teach privately..he could ..but his aim is to teach all the students. He want to help students like us.without expecting money or whatever

    • @suhanikumari6518
      @suhanikumari6518 5 лет назад

      Congrats for 96 marks bro

    • @paaras
      @paaras 5 лет назад

      @@suhanikumari6518 lol Your Exams Are Near Too Mine Also They Are 9 days away Lets Complete The Syllabus As Fast As we Can Oh i got Distracted ! shit ...

  • @the_best_of_all_za
    @the_best_of_all_za 3 года назад +285

    This lecture is really phenomenal, like a hour ago I wasnt getting the concept of moles and after this lecture I got it sooo well
    I'm in grade 9
    im from Pakistan, wanna say that Indian teacher teach really very well ngl 👉🏻👈🏻👌🏻💫❤

    • @arsalanmalik7208
      @arsalanmalik7208 3 года назад +2

      Hyyy

    • @the_best_of_all_za
      @the_best_of_all_za 2 года назад +2

      @@arsalanmalik7208 sup?

    • @arsalanmalik7208
      @arsalanmalik7208 2 года назад +1

      @@the_best_of_all_za 🙂

    • @arsalanmalik7208
      @arsalanmalik7208 2 года назад +1

      @@the_best_of_all_za 👍👍

    • @aadityaprakash9643
      @aadityaprakash9643 2 года назад +10

      @@the_best_of_all_za hello sis from india
      What topics are included in your 9th grade chemistry?
      Let's match the indian curriculm with the pakistani 😅curriculm
      I heard that you'll have matrices in mathematics in 9th grade?

  • @Lifestudymaterial
    @Lifestudymaterial 13 дней назад +5

    Kon kon abhi dekh raha hai😅

  • @moonghosh5227
    @moonghosh5227 2 года назад +101

    5 years old video but the comment section is still active this is the power of our alakh sir..❤️🔥🔥
    Respect+++++

  • @tarry5491
    @tarry5491 4 года назад +23

    Zindagi me pehli baar samjh me aaya mujhe mole concept. Thank you so much sir 🙏🏼😌

    • @yoora9195
      @yoora9195 3 года назад +1

      ARMYYYYYYYYYYYYYYY 💜💜💜💜💜💜💜

    • @hiarmylink156
      @hiarmylink156 3 года назад +1

      Armyyyyyyy☆♡

    • @mrain37
      @mrain37 3 года назад +1

      @Random Online Student No lamo😂,
      Fans of bts are called as army, I can't control my laughter on ur comment 😂

    • @sujit2320
      @sujit2320 3 года назад

      Armyyyy💜💜💜💜

  • @akshatgupta8322
    @akshatgupta8322 3 года назад +25

    27:06
    Alakh Sir - "whatever it is"
    Maths - :-{

  • @Mom_Dad-up3ns
    @Mom_Dad-up3ns 15 дней назад +2

    Even after 7 years it also help the students❤ thank u sir🙏

  • @khushank9986
    @khushank9986 2 года назад +44

    Thank you sir for this wonderful explanation, now I am damn sure to tackle any question based on mole concept and this is only because of you sir.

    • @TA.46
      @TA.46 2 года назад +2

      mm

  • @HA-wz3ep
    @HA-wz3ep 6 лет назад +189

    Sirrr yeh lo best teacher award🎖️🎖️🎖️🎖️🏅🥇🏅🥇🏅🏅

    • @shalinigupta9204
      @shalinigupta9204 5 лет назад +11

      @SUBSCRIBE TO PEWDIEPIE subscribe to t series

    • @itachiuchiha6940
      @itachiuchiha6940 5 лет назад +3

      @@shalinigupta9204 subscribe to pewdiepie for original content

    • @Anand_Kumar88
      @Anand_Kumar88 5 лет назад +6

      @@itachiuchiha6940
      Unsubscribe to T series & Pewdiepue

    • @alimustafa9348
      @alimustafa9348 5 лет назад +1

      Bhohat khoob

    • @smat3542
      @smat3542 5 лет назад

      @@itachiuchiha6940 hello Otaku!!!

  • @clashwithbarbarian7568
    @clashwithbarbarian7568 4 года назад +84

    THIS MAN REALLY GOT SOME TALENT

  • @swarnavdasviic2363
    @swarnavdasviic2363 3 месяца назад +3

    I'm a candidate of grade 9th . I watch his videos to find various numericals with sol.( to examine myself).. Being a JEE ASPIRANT ,I watch the topics of 11th . After watching these videos , I would like to say , " Some teachers must follow him to be an ideal teacher. From academical and ethical aspects, He is one of the best instances." Keep watching these engrossing classes.

    • @Anshuchallenges52
      @Anshuchallenges52 3 месяца назад +1

      Hey bro wanna contact u i am dropper preparing for neet

    • @Snehajha-h
      @Snehajha-h 3 месяца назад +1

      Broo Mene bhi 9th me hi ye padha tha now i'm in 10th Nd Esme chemistry me kuch khaas nhi Thaa sb complete kr liaa Ab 11th ka basic strong kar rhe hain (Maja ata hai cheme. padhne me)

  • @anamikasuman1743
    @anamikasuman1743 2 года назад +203

    TRUE WORTH WATCHING THESE 40 MINS....AWESOME TEACHING!!

    • @DivyanshuSaini23
      @DivyanshuSaini23 2 года назад +1

      कभी क्लास में ठीक से ध्यान दो
      तो समझ आ जायेगा
      कहा हो रही बेस्ट टीचिंग

    • @सुदय-त8थ
      @सुदय-त8थ 2 года назад

      @@DivyanshuSaini23 kuch logo ki teachers hi achha nahin padhati woh bore karti hai

    • @bhagwanbhakt2388
      @bhagwanbhakt2388 Год назад

      Anamika jii I

  • @shaikakhtar760
    @shaikakhtar760 3 года назад +20

    Sir in 24:51 can't we do like this...
    In CH4 we have 4 moles of hydrogen
    So by formula no.of moles=mass given / molar mass
    So in CH4 the given mass is 32 grams
    4 moles = 32 g / X
    X= 32/4 = 8
    Sorry if I did wrong....btw I love Ur teaching sir 🙏

    • @swatichavan1769
      @swatichavan1769 2 года назад +1

      u r right

    • @bijoymishra6130
      @bijoymishra6130 2 года назад +1

      U r ri8... 8g of hydrogen hoga woh....

    • @Unique.Things
      @Unique.Things 2 года назад +3

      I think aise karna sahi nahi hai kyuki 32g me 1 mole C aur 4 moles of H atoms ...so aisa nhi likh sakte ki....
      no of moles = given mass / molar masss
      Kyuki given mass total CH4 ka h na ki only H4 ka !!
      I hope it helps !!!

    • @liounique1177
      @liounique1177 2 года назад +1

      No we can't do that because in the question it's telling to find mass of hydrogen only, while mass of the whole ch4 is 32 g.

    • @navyakhanna8194
      @navyakhanna8194 5 месяцев назад

      Ur right

  • @krishnaprakashtiwari5251
    @krishnaprakashtiwari5251 6 лет назад +111

    Wow what a explanation No words to say about this fantastic lecture Thanks Sir

    • @abidabbas3470
      @abidabbas3470 6 лет назад

      yes can't explain in words

    • @bubundey2135
      @bubundey2135 5 лет назад

      Great sir. I clearly understood the basics of mole concept in class ten. Helped me wide in the boards

  • @Satyam_m_01
    @Satyam_m_01 2 месяца назад +28

    Anyone is 2024😂

  • @Shreyachauhan9
    @Shreyachauhan9 4 года назад +22

    मेरे पास शब्द नहीं है। इन महान शिक्षक के लिए मुझे सबसे अच्छा तब लगा जब इन्होंने पंखे को खोला इसका तात्पर्य यह है कि इतने समय से गर्मी में पढ़ा रहे थे। आप को चरण स्पर्श है 🙏🏿🙏🏿🙏🏿✨✨✨✨

  • @wiingysomtechnologyhacks6951
    @wiingysomtechnologyhacks6951 Год назад +14

    hats off to this person I was struggling with this concept for months this guy just cleared all of them in just 1/2 hour. we have legends on youtube so why do we even need to purchase the batches?

  • @utkarshtiwari1879
    @utkarshtiwari1879 5 лет назад +48

    2 teachers I love most:
    1. Anand kumar
    2. Alakh pandey

    • @harshanand349
      @harshanand349 4 года назад

      U don't know reality of anand kumar

    • @harshanand349
      @harshanand349 4 года назад

      @@najmussehar11 u all think anand kumar to be great, me too but reality Is something else, I found out the truth

    • @hiragul5256
      @hiragul5256 4 года назад

      Harsh anand tell the truth then

  • @mohdmustafa3079
    @mohdmustafa3079 25 дней назад +1

    Guys!!! Note:the question of calculate mass of hydrogen atom present in 32 g of methane ?? question sir said answer has 4moles but the right answer is 8 moles becoz 2 moles of methane give 2*4=8moles

  • @jyotiranjanpanda8383
    @jyotiranjanpanda8383 4 года назад +285

    plse dont dislike his videos ..he is just awesome.

    • @udaybalaji7376
      @udaybalaji7376 4 года назад +4

      It's correct

    • @ajiteshpratap8517
      @ajiteshpratap8517 4 года назад +1

      Tera aukaat hai enkai zaisa vdo bananai ka reply me later

    • @ajiteshpratap8517
      @ajiteshpratap8517 4 года назад +1

      Hai kon tu enkai vdo ko dislike karanai wala sala@....##..mad...

    • @jyothsnatalluri7422
      @jyothsnatalluri7422 4 года назад +2

      Yes he’s awesome

    • @subhashwankhade557
      @subhashwankhade557 4 года назад +8

      @@ajiteshpratap8517 are bhaiya jo aap bol rahe ho vahi same chiz vo bhi bol rahe hai
      aap ko kuch galat famivi ho gayi hai

  • @shubhangi921
    @shubhangi921 3 года назад +30

    3 saal se smjh nhi aa rha tha or sir aapne 40 min m smjha diyaaa #physicswallah kamaal h

  • @mohdmehdi172
    @mohdmehdi172 2 года назад +785

    Who is here in 2022? Trying to learn and prepare for exams ?🙄

  • @piethon_guru_141
    @piethon_guru_141 5 месяцев назад +7

    36:43
    To solve this problem, we'll use stoichiometry to find the mass of H2 required and NH3 produced.
    1. Calculate the molar mass of N2:
    Molar mass of N2 = 14 g/mol
    2. Use the stoichiometry of the reaction to find the molar ratio between N2 and H2:
    1 mol N2 : 3 mol H2
    3. Calculate the number of moles of N2:
    Moles of N2 = Mass of N2 / Molar mass of N2
    = 14 g / 28 g/mol
    = 0.5 mol
    4. Use the stoichiometry to find the moles of H2 required:
    Moles of H2 = Moles of N2 × (3 mol H2 / 1 mol N2)
    = 0.5 mol × 3
    = 1.5 mol
    5. Calculate the mass of H2 required:
    Mass of H2 = Moles of H2 × Molar mass of H2
    = 1.5 mol × 2 g/mol
    = 3 g
    6. Now, use the stoichiometry to find the moles of NH3 produced:
    Moles of NH3 = Moles of N2 × (2 mol NH3 / 1 mol N2)
    = 0.5 mol × 2
    = 1 mol
    7. Calculate the mass of NH3 produced:
    Mass of NH3 = Moles of NH3 × Molar mass of NH3
    = 1 mol × 17 g/mol
    = 17 g
    So, the mass of H2 required is 3 grams, and the mass of NH3 produced is 17 grams from 14 grams of N2 gas.
    ❤❤ thankyou ❤❤

  • @rajkishormishra7257
    @rajkishormishra7257 11 месяцев назад +31

    It's 2023 October almost 6 years old, watching this module of Alakh Sir, it's really treasury for students... I didn't understand mole concept but Alakh Sir explained it very welll... Hats Off to Sir!! ❤

  • @rajdhamej5618
    @rajdhamej5618 5 лет назад +812

    Watching this vedio after boards 😂😂😂and have no idea about mole concept because 9th maze me kri thi😂😂😂