Quantitative aspects of Chemical Change Stoichiometry Introduction 

My apologies everyone at 13:56 I made a mistake because I took the Atomic mass number for sulfur to be 12 but that is TOTALLY the Atomic mass number for Carbon 👀😢 my humblest apologies! ❤️ The molar mass (M) for MgSO4 is therefore 120 (NOT 100). As a result the number of mols (n) is 0,083333 mols. As a result when you use the next formula, big N (number of MgSO4 molecules) will be 5,0166666 x 10^22 (to the power of 22). Therefore the number of oxygen atoms will be 5,0166666 x 10^22 x 4 which is equal to 2,01 x 10^23 oxygen atoms. So the method still stays exactly the same ❤ please learn from my silly mistake and never assume you know the Atomic mass, always look it up on the periodic table to make 100% certain 🎉❤

Mami u are definitely underrated 😢u are the best teacher in physics❤we appreciate your efforts

And you just restored my hope in ever understanding quantitative aspects of chemical change, the thing literally made my life difficult in chemistry last year. Thank you so much, you're highly appreciated🩶🙏🏼

I really appreciate you ma'am.Sending my love from the Eastern Cape❤May God continue to bless you and your family abundantly.

Watching this video exactly a year later ❤😂

One of the best physics teacher

🥺thank you mam, just when I thought I was gonna leave out the question regarding this topic because I didn't understand😊 ❤you're indeed a life saver🎉

Not me actually enjoying chemistry rn 🤣🤣 Thank you so much mam, may God continue to bless you, and Thank you for today's lesson ❤️💯

I'm writing a test today and this helped me to understand the formulas thank you so much

I'm an A student but recently I skipped one class of physics this helped me catch up tsm ❤

Thank you so much. I was a bit worried about this topic but now I am actually a enjoying it and will definitely keep following for more .😊👌

Thank you ma’am you really clarified this topic for me because I was totally lost in class ❤

Ma'am when I divide 0.2 and 22.4 it gives me a different answer that is in scientific notation

Hi mam i think you made a mistake somewhere by 14:00 because sulfur is 32??

thank you so much Madam I'm understanding the formula now.

what a life saver ,you deserve more to life than this ,thank you ma'am ,from witbank

Thank you mam,I couldn't be more grateful❤❤❤

Hy mama thank you so much on the example using the formula n=N÷NA you wrote that the molar mass of MgSO4 is equal to 100 how? Plz help me mam

Thanks for the lesson ❤❤❤ it helped a lot

Hiii Maam do you mind doing a video on water of crystallization grade 10

I might be a bit late but how is the molar mass of Sulfur 12 ?

18:49 you can use both formulae

Forever wena miss❤❤❤

I hope you find out how to put your videos in playlists, so they are easier to find.

Thank you so much for all these videos😭🫶🏻 i feel super confident!

Thank you so much for the help mam❤ 🎉

Is it possible to write our answers in scientific notation.

Wow thank you mam!!🥺❤️you the best🧸

From Avogadro's number 6.022 ×10 what if it's 2 mol does Avogadro's Number Change?

You are helping me so much mam 🫶

Okyy why you say 100 in the molar mass

Can i get an activity about stoichiometry only for practice 😢

Thank you so much

Thank you mam❤❤

i commented yayyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!

thank you so much!!

I think you made a mistake where you said atomic mass of sulfate was 12

May you please do past papers in this topic please❤

made a mistake its S WHICH IS 32

How did you get Na

Mam how come your sulfer's atomic no is 12 but mine is 32

Mam Sulphur is 32 and you wrote 12 so i think your anwere at 15:35 is wrong

Im still abit confused😅 but i understand way better then class😅

Thank gof 😂i was going to ask wat happened buh i understand mistakes happens

Thank soo much ❤🎉🎉❤😊

22:44 there is a mistake

Sulphur is 32 not 12

Suiiiii

Your students are lucky.🥹🥹🥹