Im doing my first year towards Pharmacy degree ..i failed chomistry first semester and now im repeating it..thankyou soo much your channel has given me hope..:)
I'm a sophomore in high school, Im taking honor chemistry and I have a test tomorrow on mole conversions, molar mass, percent composition and empirical formulas worth 20% of my term grade. I have been up all night trying to find a video with some value that might just give me that "ah ha" moment. I have finally stumbled upon that video. Thanks so much!
I have a chem test tomorrow and really did give up all hope on finding an easy way to learn this stuff. However, you sir, made this so easy. You got yourself a sub!
Thank you! Sometimes learning certain subjects with my teacher is difficult because of her teaching style and my learning style; but this helped me out a lot(: I'll definitely be checking out more of your videos(: Thanks Mr. Causey!
Thank you so much for your help, Mr. Causey! I have a chemistry test tomorrow and let's just say that my teacher is bad at teaching .. you really did save my ass! I am going to recommend you to my classmates, without any doubts
Excuse me.... What is the value of 60.06? I mean where did it come from and how can it be calculated? It appears in the section talking about molecular formulas. Can anyone help me? Thank you
Can you help me Mr. Causey please. My teacher ask us to get the excel formula for the Percentage composition of a compound, wherein i only need to enter the compound.
Its really funny how everyone is grateful for this because they have an exam "tomorrow" or "today" and they've only just thought about seeking help, but very helpful videos overall.
The percent composition of P2O5 is just the same process. You have 2 phosphorous and 5 oxygen. Double the P and multiply the O by five and add together fr the whole. Parts divided by the whole give the percent.
Thanks Mr. Causey but I'm not sure that I get the idea, can you please write the formula in the comment ? because I'm not talking about percent composition of P and O in P2O5 ... I want to know percent composition of P2O5 in Ca3(PO4)2 .
@@mrcausey Thank you sir for responding, I’m taking chemistry class and I’m struggling with Molarity problems. I came across your videos through openstax , very helpful thank you so much. I subscribed in your channel.
Hi, I used 0.8 grams of chalk (calcium carbonate) to write my name. I have a questions, perhaps 3 questions. How many moles of calcium atoms are in the amount of chalk that I wrote my name. How many moles of oxygen atoms to write my name. How many moles of carbon atoms did I use to write my name. I know the amu of each element. I know that their are three moles of oxygen and 1 of calcium and 1 of Carbon. Yet, I am unsure as to how to set up the calculations to come up with my answer. Could you help me, or send me to a video that could?
Molar mass is mass per mole (g/mole). Mass (g) x molar mass (mole/g) will equal moles. You have to use dimensional analysis and make sure the ratio is used in such a way that grams cancel out. Stoichiometry can't be put in a cookie cutter form, you have to think the problem through.
I'm sorry, I know this is supposed to be a question and such, and this comment is really off topic but doesn't he sound kind of like Milo from Atlantis?
Im doing my first year towards Pharmacy degree ..i failed chomistry first semester and now im repeating it..thankyou soo much your channel has given me hope..:)
The plus point is you explain detailed information and easily understandable
Thank you for watching and taking the time to comment. It is very much appreciated.
I'm a sophomore in high school, Im taking honor chemistry and I have a test tomorrow on mole conversions, molar mass, percent composition and empirical formulas worth 20% of my term grade. I have been up all night trying to find a video with some value that might just give me that "ah ha" moment. I have finally stumbled upon that video. Thanks so much!
You're welcome!
my lecture prof is so bad i stopped going to his lectures and just watch your videos and read the book and practice! thank you for this
These videos, in combination with class lectures and homework are just invaluable. Thank you.
You're welcome. Thank you for watching and leaving feedback.
I totally agree! It helps to see the material presented in a different way!
I have a chem test tomorrow and really did give up all hope on finding an easy way to learn this stuff. However, you sir, made this so easy. You got yourself a sub!
Thanks
This video was extremely helpful! You did a great job of thoroughly explaining the material. Thank you!
You do a great job explaining the subject matter. Thank you for sharing your knowledge and helping students learn chem easier. Keep up the good work
Thank you for the kind words.
Incredibly helpful simple and to the point.
Thank you for watching and commenting!
You made this very easy, visually appealing, friendly, and most importantly, understandable. Thank you very much.
You're welcome. Thank you so much for watching and the great feedback.
@9:06 the 60.06 grams is being stated as what the real mass is supposed to be.
Thank you! Sometimes learning certain subjects with my teacher is difficult because of her teaching style and my learning style; but this helped me out a lot(: I'll definitely be checking out more of your videos(: Thanks Mr. Causey!
+Emma Mahard Thank you for taking the time to comment. It is greatly appreciated.
That's so much i have a chem test tomorrow and this was very helpful!
Wow!! love this guy. Covering all that material in less than 12 mins compare to a 5 class almost two hours each and still confuse a whole of people
thank you very much for such easy to understand videos... i was so worried abt my chem test but now i am confident..!!
Thank you so much!! This has helped me so much with studying for the finals
I have my chem midterm tomorrow and this was a great way to review. Thanks!
You're welcome and good luck!
keep up the great work, you're doing a great job and don't let the haters tell you whatnot!
Nice vid, I have my chem final tmw, and this helped me understand this stuff because I forgot how to do all of this, thx.
Thanks Mr. Causey you going to help me pass Chemistry.
Thank you, I have an exam today, this really helpes clarify and review some things :)
Thank you Mr. Causey you helped me pass my test
Congratulations! Thank you for sharing.
This video helped me so much! Thanks man
+Slutter Butter You're welcome. Thank you for taking the time to comment.
Thanks for the help!
Mr Causey, you are so awesome!!!
Your videos really helped me in my exam, and for that you earned a sub. :)
Thank you so much for watching.
Thank you so much for your help, Mr. Causey! I have a chemistry test tomorrow and let's just say that my teacher is bad at teaching .. you really did save my ass! I am going to recommend you to my classmates, without any doubts
+nermin yigen You're welcome. Thank you for the kind endorsement.
thank you so much ,helpful video
Thanks for making this video.
+Jose Medina You're welcome.
Thank you so much!!!! extremely helpful!
Very nice. Thank you!!
you are amazing sir!
why dont you have more views? even those video with over 100,000 views don't explain any better and easier than you. thanks a lot
thank you so much you saved my grades from our periodical test because of this
Excuse me.... What is the value of 60.06? I mean where did it come from and how can it be calculated? It appears in the section talking about molecular formulas. Can anyone help me? Thank you
@ 9:00-9:02
this is for my homework i swear
thank you very much , you are the best.
Thank you for watching and commenting.
Thank you so much
Tomm is my chem test and I didn't know what to do I was unaware of all that 😘😘
I'll tell u if I get good marks
+XxDOUBLE K SHAHZADAxX You're welcome. Thank you for the nice comment.
+Mr. Causey hey I really got an a*
Thank you so much
+XxDOUBLE K SHAHZADAxX Awesome!!
Oh boy I love you Mr.Causey****
Thank you for watching and commenting.
Thank you so much I had homework that was a week late and this video really saved my bacon.
+Asael Lagos You're welcome. Thank you for taking the time to watch and comment.
thank you. have a quiz on this tomorrow. wish me luck
Thank you for commenting and GOOD LUCK!!
Thank you sir!
Thank you very much!! :-)
Thank you very much
Really good, thanks
Can you help me Mr. Causey please. My teacher ask us to get the excel formula for the Percentage composition of a compound, wherein i only need to enter the compound.
Awesome! Thanks!
this is great thank you
You're welcome. Thanks for watching.
Clicked on this video to review for my semester exam in chem at ahs. Small world.
Good Luck, Allison!!
amazing Mr. Causey!, your voice is very charming, something wrong with my brain, I keep watching your videos but still I can't learn..huhu
Thank You!
Helpful thank youuu
Very VERY Helpful! Thanks :D
But I don't get ( 9:39 ) I don't get how you got 60.06 grams (please help!)
Thank you !!!!!! :)
how did you get 125.0 grams @5:46? Thanks
That is the amount from the problem. 5:03
Thanks!
+CookieDaMann so glad u asked that
Thanks
Its really funny how everyone is grateful for this because they have an exam "tomorrow" or "today" and they've only just thought about seeking help, but very helpful videos overall.
Thanks for the feedback.
shut up
Thanxxx alot ☺
You are welcome. Thanks for watching.
Welcome.. I have EXAM in it and you helped me..😊😉
5:47 i dont understand where 125.0 g Fe2O3 came from? what do you mean by the total amount?
+jay a7med nvmm its in the question got it!! lol
thanks dude
good stuff
Explain why he sounds like a slightly older Milo Thatch from Atlantis
Because I am older than Michael J. Fox and he sounds like me. BTW thanks for listening.
Thanks!!! :D
6:01 Where did the 125.0 come from?
From the problem. 4:48
for the molecular formula in step 2...how did you get 60.6
60.06 grams is the molar mass given in the problem at 9:02
Thank you for getting me through chemistry.. You can teach, my teacher cannot..
Krookedd same here
what if we talk about the Percentage Composition of a composed in other composed ??
like for exemple P2O5 in Ca3(PO4)2 ??
The percent composition of P2O5 is just the same process. You have 2 phosphorous and 5 oxygen. Double the P and multiply the O by five and add together fr the whole. Parts divided by the whole give the percent.
Thanks Mr. Causey but I'm not sure that I get the idea, can you please write the formula in the comment ?
because I'm not talking about percent composition of P and O in P2O5 ... I want to know percent composition of P2O5 in Ca3(PO4)2 .
There is no P2O5 in Ca3(PO4)2 unless you have a reaction.
Thanks Mr. Causey (y)
I did the mass percent of H and I found 0.01587% H in HNO3, how did you find 1.60%H
1.01 g H/ 63.02 g HNO3 x 100 = 1.60%, I believe you forgot to multiply by 100. Thanks for watching.
@@mrcausey the mistake I did I found in the calculator that I put 0.01 instead of 1.01
thx!
Haha well I'm sorry for the randomness of my earlier comment. The video did help however! Thank you! @Mr. Causey
+morrison_ 1031 You're welcome!
You are welcomes
where did the molar mass of 60.06g come from?
Viktorija Petrov It's part of the problem. If ...
Thank you
Mr. Causey..now this increases my IQ
Thank you for watching and commenting!
also 40.0% carbon, if i get rid of % that's 40/100=0.4 g carbon
40.0 % is .40 thus, .40 x 100 g = 40 g carbon. Thanks for watching.
@@mrcausey Thank you sir for responding, I’m taking chemistry class and I’m struggling with Molarity problems. I came across your videos through openstax , very helpful thank you so much. I subscribed in your channel.
Hi, I used 0.8 grams of chalk (calcium carbonate) to write my name.
I have a questions, perhaps 3 questions. How many moles of calcium atoms are in the amount of chalk that I wrote my name.
How many moles of oxygen atoms to write my name.
How many moles of carbon atoms did I use to write my name.
I know the amu of each element. I know that their are three moles of oxygen and 1 of calcium and 1 of Carbon. Yet, I am unsure as to how to set up the calculations to come up with my answer.
Could you help me, or send me to a video that could?
how did he get 30 for empirical weight?
You had my complete attention when you said Texas. errrrrrr
why is it that first you multiply by 100 then you multiply by the percent?
How did you get the .6994? I thought it was 69.94%?
+Amer Mangondaya You must change a percent to a decimal in order to calculate with it.
thank you sooooooooooooooooooooooo much. I wish if you were my teacher
Isn't it not mass over molar mass give you moles?
Molar mass is mass per mole (g/mole). Mass (g) x molar mass (mole/g) will equal moles. You have to use dimensional analysis and make sure the ratio is used in such a way that grams cancel out. Stoichiometry can't be put in a cookie cutter form, you have to think the problem through.
video's awesome. downside is voice is a little soft
i think you should be more clear in explaining but it was nice
2:53 seems wrong...it should be H3grams over Nh3..right?
Nope. I am referring to hydrogen as an element at that point not its mole ratio. The grams of hydrogen divide by grams of ammonia.
I swear that g in grams looks like an s.
I'm sorry, I know this is supposed to be a question and such, and this comment is really off topic but doesn't he sound kind of like Milo from Atlantis?
+morrison_ 1031 It really isn't that unusual. A lot of people think Michael J. Fox sounds like me.
Am I the only one who thinks you sound like Michael j foxx?
No, you're not. It is a frequent comment. However, it is he who sounds like me.
Who’s here after failing in this class
Check out my channel for more videos.
Understood it better, but your voice is too squeaky and boring.
Well, we can't all be Morgan Freeman.
I hate chemistry
Sorry!
ty so much! very helpful video
thank you so much, very helpful.