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- Опубликовано: 14 июл 2024
- Class 11 Chemistry | Some Basic Concepts of Chemistry | Concentration of Solution | Molarity and Molality | NCERT Ch 1 | Ashu Sir
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📌Topics :
00:00 :- Introduction to Concentration of Solution
03:36 :- Mass Percentage
06:04 :- Volume Percentage
09:56 :- Parts Per Million
15:51 :- What is Molarity ?
19:48 :- What is Molality ?
29:21 :- Mole Fraction
32:40 :- Important Numerical 1
34:21 :- Important Numerical 2
38:03 :- Important Numerical 3
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Learn and Fun,
Ashu Sir Chemistry
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Sir molality is best
Molality
molality does not change with temperature because the mass of solvent does not change with the change of temperature
Molality
Molality
Anyone from batch 2024-25😅😊
Hehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehhehehehehehehehehehehehehehehehehehehehehehehehehehehehehehe
Which school😢
Present
Yup
I am also😅
Studying without book but understood everything and was able to solve every q ....tysm sir 😊....
~New batch 2024-25
Same batch
Same batch bro
@@xqfrusherlive8975 anime lovers
Bro same again. 😊
@@sampurakghosh.5152 cool which anime currently watching
Kon kon T20 world cup 2024 jitne ke baad aaya hai 🥹
Bhiari sant roo
🥹🫶
I'll answer honestly... This is one of the best videos I've come across on youtube. No irrelevant talk just straight to the point teaching and that too with a very good concept clarity method in a language understood by most. Sir hats off to you!!! No promotion nothing just teaching students for their own benefit. You've earned mine and a lot of other student's respect!
I know right . Sir is a 💎
Pudu
25:37 molality is better as it deals with mass and mass is constant and doesn't changes with effect of temp, whereas molarity deals with volume which have chances to change.
anushka from jeewan jyoti i guess 😅 preparing for NEEt
@@tecnowithdaddy4042 unfortunately yes 😂😂 but for 2024
No morality change with temperature cuz of expansion ya contraction of the liquid with temperature but molality does not change with temperature cuz the mass of solvent does not change with change in temperature.
The mass of solvent*
@@3rddegreeyt144 so that's what I said you just changed the language. ...
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
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*Mr. Ketone
*Jab we experiment...!
😜😜Dialogue baazi in chemistry..
*My name is BOND...Covalent Bond!
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*Ek baar jo maine bond toda to main activation energy ki bhi nahi sunta!
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*Ye electron mujhe dede Carbon!
*Ek neutron ki keemat tum kya jano Hydrogen Babu!
Bhai bhai bhai azab bhai ki gazab shyari😂
@@Ayush02234 😂
Itna type karne mein time waste karne se accha padh hi lete.....
@@aimbotFF792 btw tum comments padne ki jagah padh hi lete...😁
@@rudrakshtank4792 Yeh sahi tha guru😏
25:25 as per my weak knowledge , Molality is better as it includes Kilograms(kg) which becomes easy to calculate. Frankly speaking I am just guissing, I dont know I am correct or wrong
Fact :- Nothing is basic in this whole chapter 😅
41:00 last answer is 0.029mol/l
Same here
Yes 0.029 With Calculator and mine is 0.03 by average 😗
yep I got the same
H.w Q. Calculate the mass_______________82.0245gmol-1 ?
Sol- given ,
No. Of moles in sodium acetate - 0.375
Molar mass - 82.0245
No. Of moles in 500 ml
---> 0.375/1000×500
0.1875 moles
Mass of sodium acetate ----> 0.1875 × 82.0245
15.38 g
Attendance lgao 2024-2025 batch valo😅😅
Yes brother I also
Present
Batch 2023 2024😊😊
Sir you are the best teacher of chemistry❤
📌Topics :
00:00 :- Introduction to Concentration of Solution
03:36 :- Mass Percentage
06:04 :- Volume Percentage
09:56 :- Parts Per Million
15:51 :- What is Molarity ?
19:48 :- What is Molality ?
29:21 :- Mole Fraction
32:40 :- Important Numerical 1
34:21 :- Important Numerical 2
38:03 :- Important Numerical 3
👍👍
Pucha kisine
@@AryanDeshwal-zf7gt hn
maine
Har ek video mai koi na koi aisa hota he hai 😂😂😂
@@AryanDeshwal-zf7gtyessss😅😅😅
25:40 molality is better as it deals in kg or gram ligui can be measured in kg but solid can't be measure in volume so i think
Mass of sodium acetate =15.37979375grams
Or 15.38g
How
Mera bhi sem aya
WOW! YOUR WAY OF EXPLANATION IS AMAZING SIR!!
HATS OFF TO YOU SIR
BEST TEACHER OF SCIENCE :)
Sir u are the best.. Teacher ever i have seen.. U clear all the concept clearly😂 ...... 2023- 2024 batch attendance here
Present ma'am ✋🏻
Present ma'am
Hii
HW > Ans = 15.375
solution > Let mass is Y
Let no. of mole is X
X/0.5 [LITRE] = 0.375[Molarity]
X = 0.375*0.5
X = 3/16
Y/82[moliqular mass] = X [no. of mole]
Y = 15.375
After watching your videos you forced me to leave a comment of appreciation for you... You're so good teacher like seriously If teachers like you join our schools then I'm quite sure students didn't need to join any tutions or any RUclips lectures to study... Keep it up...
Sir you are the best teacher 👍👏sbb kuj ache se smaj aa jata he jab app pahda te he😇... Sir app jaldi jaldi lectures upload kijiye please class 11th (physics and chemistry k) .... 1 din me 2 lecture (physics and chemistry ) class 11th ka upload kr dijiye ...... School me half syllabus pura hogeya he or ham to app k hi sahare he sir .... its my request sir please jaldi jaldi lectures dhal dijiye🙏🙏😇
Thank you sir for this amazing lecture. Sir aapne recently NEET ka bhi channel khola hai to ye ek request thi meri aapse ki aap please NEET 2024 ke liye bhi uspe videos daaliye. I hope aap ye comment padhe and NEET 2024 me hamara sath de. Thank you sir 🙏🙏
Yakin he sir ek neet 2024 ka u tube channel kholenge
@@ffstatusgamingnizam6658 let's hope Aisa hi ho
Ha sir ko kholna chaiye
Yes sir should open a channel for neet
Yes sir ya to fir ek series bhi start kar sakte he sir
Hw answer
No of moles of CH3COONa = 0.1875mol
Mass of CH3COONa = no of moles × molar mass
=> 0.1875 × 82.0245
= 15.37959375 g
~=15.38 grams
~
Bro yeh no of moles kese nikale bata de
@@Lakshiya2008 molarity = (no. Of moles of solute) ÷ volume of solution
=> no. of moles = molarity × volume
=> no. Of moles = 0.375M×0.5L
So no. of moles=0.1875mol
Hii bro tnx for explaining 👍🤗
Iska answer 153.79593750 hoga because 82.0245×1.8750 karne ke baad answer 15379593750 aata hai aur 8 number multiplication karte samay decimal ke baad aate hai toh answer me last ke 8 number chhod ke point lagana padta hai isiliye answer 153.79593750 aayega. Tu ne 15 ke baad hi point laga diya
Correct answer:- 30.76 g
25:30 Molality is better than molarity because Molality depends on mass and mass is always constant. Whereas molarity depends on volume and volume varies with temperature
25:30 molality is better because molarity can be affected by changing the temperature while molality of system is function of mass which does not have any effect of temperature
lmfaoo
Bro fir 1 crore rupees kab milenge 😁😁😂😂
Thank you so much sir jii for this awesome lecture 🥰🥰❤🙌🙌🙌
Attendance for 2024-25batch
If this first chapter is ABCD what is paragraphs 😂😂😂
Sir u r life saver.may God bless u always
Sir you are best teacher ❣️
Amazing teaching skills sir!!
🤩🤩
26:14 sir both molarity and molality are good at their own part as it helps us to get the no. Of moles in both the parameters of kg and litres !
15.37g = mass Of sodium acetate 👍🙏👍
Yess,
15.378750 g to be accurate
How?
Whi
@@dontwatch12 not gram i got that in kg can u give the sol^n
@@vansh7724 calculator ka choda
Sir upka parhaneka style bahot sahi lagta hai....
Up please xi & xii chemistry ka sab chapters complete kar dijiye.....
Mujhe sabse badhiya apka teaching skill laga
Sir aapke jokes mujhe hamesha pasand aate h 😂😂
20:05
molality is better because vol change according to 🌡️ but kg does not varies much
Awesome explanation in every lecture sir ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
Each and every concept which you taught are crystal clear👍👍👍
Thank you so much sir 💓💓❣️❣️for your commendable efforts 🤩🤩🤩
11:20 sir ne kiya emotional blackmail 😂
Batch of 2024 - 25 ❤🎉
25:30 sir molality is better because it deals with masses and mass is constant irrespective of any change like temperature , etc .
Sir need a lecture about empirical formula and molecular formula 🙏
Bhaii ham toh 24-25 batch k h
Epic line jahan par teacher apko dil or dimag dono se padhate hai......❤
Thank your sir for free teaching and such a great teaching
in my opinion molality is better because of the SI unit being dependent on kg rather than Litre, as no of moles also depends on mass and mass of sovent is also nothing but mass as well.
11:12 ye promotion nhi pyar hai 👀💗
Chem :- Aashu sir
Phy :- Abhishek sir
Bio :- Seep maam
11th - 12th solved done 😉😉
for me chem and bio same but physics means alakh pandey sir
I am so excited 11th aap se padhne ko milega 🤓🥲🥰
Whats the sir qualification??
Aashu sir aapko dekhkr mere aashu aajate h
Wow!nice explanation
25:37
Molality is better than molarity bcoz molarity is temperature dependendent and volume of solution changes with change in temperature of solution . Molality is better bcoz it involves mass which doesn't change with temperature.
Sir for me your the best online science teacher....and your jokes are amazing 😂🙌🏻
thanks sir
Thank you sir for taking efforts for us 🙏 🙌 👏
Sir ur teaching is superb ❤️🤩
maybe the best sir in the universe we have ..
You video is very helpful to understand any topic❤❤
2024-25 batch student attendence here 😎⚔️
😂😂
Kya hua Bhai...@@SanayuChopra
Sir black board is very convenient for us as it makes us to look at screen without any tiredness and it also keeps our eyes cool
12:39 best part of the video 😂😂😂😂
phele sirr doubtnut pe classes dete the kisi ke under kam karte the par abh kismat badal gyi sir ke doubtnut se bhi jyada subscribers he😏
25:32 both of these sir ❤❤
Thank you sir for this amazing session!!! Your teaching is the best!!
25:37 :- I think molarity is better because for molality you have to take the volume of solution and at this moment solution has just settled down in my brain as the denominator of all the concentration terms so chances of mistakes are less as well as molarity is easier to pronounce 😀.
No, Molality is better than Molarity as m deals with Mass that does not change with the change in temperature whereas M deals with volume which has chances of changing with the change in temperature. Hence Molality is more reliable than Molarity
I had a doubt sir i am from mp board student but in my refrences book have many changes so this is also good for state board student 👍🏻
Thank you sir 😊😊
sir your teaching is excellent 👍☺️☺️
25:37 I think molality is better because of SI unit
To teacher galt hai tu sahi hai apna kaam kr
Bro last mai kya answer tha question ka
Yes sir today I know this channel and now I subscribed
Kon kon 24-25 batch se h ........?
Mee
Meeeeee😂😂
Me😊
Kya korega bhai
25:35 Molality Is Better Because If we see Solvent Its In kg And We Can Know better
If Change the Temperature In Both solution Of Molal Or Molar In molar The Solution Is in litres it May change Their volume As We See In Molal It does not effect in mass Of solution .
Hence molality Is Better For Any reason❤
Both are good
❤
Your are the best ❤️❤️
41:12 ans - 0.029 molL-1
Ans of HW ques - 15.37 moles
It's 0.025 mol/l-1
@@iamst_._2860 no 0.029 molL-¹ is correct answer
bro it,s mass not mole
very good video sir
Sir app best 🤩
38:00 mass of sodium acetate will be 15.38(15.37959)
Correct ✅....i did it from Calculator 😂
How?
@@vybzcubing7272 molarity=no of moles of solute/volume of solution.-------------(1)
molarity=0.375(given in question)
volume of solution= 500 ml= 0.5 L(given in question)
no of mole of solute= molarity×volume of solution--------------------from (1)
no of mole of solute= 0.375×0.5= 0.1875-----------------------(2)
we know that => moles= given mass/molar mass
moles×molar mass= given mass
0.1875×82.0245= 15.38(15.37959) = mass of sodium acetate required.
@@sufyankarimxa3852 got it ...thanks...🙂
Thanks for being so helpful
@@sufyankarimxa3852 tysm...😄
Sir can you please confirm that,
Last answer is 0.03 mol/L,🤔...
Mine is 0.25 mol/L😂😂
@@madhujoshi1508 its 0.029 but round off = 0.03
Nice explanation sir ❤
Sir you are superb ❤
sir please upload next lecture as soon as posssible. School waale bahot aage pahunch gye hai
25:40 molality is better because mass doesn't change in any condition but as in molarity volume can vary from container to container and also at different temperatures.....
No bro you are wrong , volume also doesn't change.
Thankyou sirr 😊😊
25:30 molality is better as it deals with mass and mass doesn't changes with effect of temp.
I think molality is better than molarity..
~Your student Jaanvi..
Molality is better than molarity ...
Tip for 11th students: Acche se padh lo ye chapter. 12th me electrochemistry me fir ye sab aayega
Shukriya ❤😊
Thank you sir....
Amazing class😍😍
Chemistry : Aashu Sir
Physics : Alakh Sir
Maths : Dear Sir
*11 ki taiyaari toh ho gyi* 🤩💯
Alakh sir ka class 11 wala playlist nhi mila mujhe kon sa h tum batao ge ?
Free me lapet lo bhai, best teachers😌💯
@@archanapatidar2169😊 29:47
@@archanapatidar2169 mujhe bhi Bhai 😮
Mom-"When will you return home?"
Le ashu sir-"1/24×365 years"💀💀💀
Sir don't feel guilty... we are lucky that u are teaching us. And we know everything about your science and fun channel❤❤
Molarity is better because we don't have to find out the solvent in it we can just work with the composition provided to us in the question iff the mass of solution is given separately
2024-2025 ke student like krna bs 🎉❤
Sir, mai aapka channel utube pe science and fun ke nam se hi search krti hu 😊
Aapke btane ke bad check ki hu to pta chla h ye to learn and fun h 😇😅
Oo
good study and very help full video
Mera ko best teacher mil giya❤😅 2023 ma chemistry kilya
Thank you sir for providing us this productive sessions it is really very helpful🙏for us and benefited us too . You really a nice 😊😊😊😊😊😊😊😊👍👍👍👍👍👍 teacher