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 🎉❤
@tlotlo235 Жыл бұрын
Mam why is the big N of MgSO4 5, 0166666 ×10^22 whereas in the calculator is 4,9966×10^23 giving me the final answer of 1, 99864×10^23 after multiplying by 4?❤
@iloveintersteallarha4664 Жыл бұрын
samee thing with my calculator did u figure out what you did wrong ? @@tlotlo235
@AndiswaMazongolo-q9w Жыл бұрын
Thank you so much ❤
@brianmusekwa36824 ай бұрын
Thanks to u ma'am I'm to write with understanding
@phologokekana10193 ай бұрын
@@tlotlo235 I had a similar problem,so your not supposed to round off Ur (n) number of moles, when U are doing your calculations
@BoipeloMmatlwa6 ай бұрын
Mami u are definitely underrated 😢u are the best teacher in physics❤we appreciate your efforts
@simomoses-le2cg3 ай бұрын
Criminally underrated
@SbahleDube Жыл бұрын
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🩶🙏🏼
@missmartinsmathsscience Жыл бұрын
I'm so glad! :D I will be posting a lot more on this topic in term 3!
@isabellaaiken74693 ай бұрын
I really appreciate you ma'am.Sending my love from the Eastern Cape❤May God continue to bless you and your family abundantly.
@Ltg-c9r Жыл бұрын
One of the best physics teacher
@missmartinsmathsscience Жыл бұрын
Thank you!
@tshiamotladi7349 Жыл бұрын
I'm writing a test today and this helped me to understand the formulas thank you so much
@missmartinsmathsscience Жыл бұрын
I am so glad that it helped!
@RelebohileThapeli Жыл бұрын
🥺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🎉
@missmartinsmathsscience Жыл бұрын
Such a big pleasure! I am so happy to help you ace your exams
@nkaDnD4 ай бұрын
Watching this video exactly a year later ❤😂
@blessing72942 ай бұрын
Not me actually enjoying chemistry rn 🤣🤣 Thank you so much mam, may God continue to bless you, and Thank you for today's lesson ❤️💯
@robertsechele438 Жыл бұрын
Thank you ma’am you really clarified this topic for me because I was totally lost in class ❤
@missmartinsmathsscience Жыл бұрын
Such a pleasure :)
@SharonSithole-l5b Жыл бұрын
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 .😊👌
@missmartinsmathsscience Жыл бұрын
Glad it was helpful! :D
@classydisplays3 ай бұрын
I'm an A student but recently I skipped one class of physics this helped me catch up tsm ❤
@Reez_ThomasАй бұрын
Awesome job! Keep it up
@AndiswaMazongolo-q9w Жыл бұрын
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
@mandisiyaca42353 ай бұрын
mistake, it should be 120g.mol-1
@tutoringwithshane Жыл бұрын
Hi mam i think you made a mistake somewhere by 14:00 because sulfur is 32??
@missmartinsmathsscience Жыл бұрын
Please see my pinned comment ❤
@Speedster_gt Жыл бұрын
I hope you find out how to put your videos in playlists, so they are easier to find.
@missmartinsmathsscience Жыл бұрын
My videos are in playlists
@MajokAkolBol2 ай бұрын
thank you so much Madam I'm understanding the formula now.
@sandyabrahams28922 ай бұрын
Thank you mam,I couldn't be more grateful❤❤❤
@vloggervibez93173 ай бұрын
Ma'am when I divide 0.2 and 22.4 it gives me a different answer that is in scientific notation
@jennife._rr3 ай бұрын
Same
@Precious.K.13 ай бұрын
Same .
@Callmechelseaa27 Жыл бұрын
Hiii Maam do you mind doing a video on water of crystallization grade 10
@joshuaaugust5647 Жыл бұрын
I strongly agree =
@missmartinsmathsscience Жыл бұрын
Yes I do!
@igdaiz2 ай бұрын
Thanks for the lesson ❤❤❤ it helped a lot
@MercyMapuranga-ny1ev2 ай бұрын
what a life saver ,you deserve more to life than this ,thank you ma'am ,from witbank
@BrendaMthembu-wj7tnАй бұрын
18:49 you can use both formulae
@c.smusiqАй бұрын
made a mistake its S WHICH IS 32
@missmartinsmathsscienceАй бұрын
Please see my pinned comment about this.
@MasiiwaMuringani Жыл бұрын
Thank you so much for the help mam❤ 🎉
@missmartinsmathsscience Жыл бұрын
My pleasure 😊
@LethaboDitlhokwe2 ай бұрын
I might be a bit late but how is the molar mass of Sulfur 12 ?
@missmartinsmathsscience2 ай бұрын
I wrote a pinned comment correcting myself
@MahlodiMasehela Жыл бұрын
I think you made a mistake where you said atomic mass of sulfate was 12
@missmartinsmathsscience Жыл бұрын
I know I did mention this in my pinned comment
@caydiess Жыл бұрын
Thank you so much for all these videos😭🫶🏻 i feel super confident!
@missmartinsmathsscience Жыл бұрын
You got this! I believe in you :D
@mbekademase41995 ай бұрын
Is it possible to write our answers in scientific notation.
@NamoliNtuli5 ай бұрын
Wow thank you mam!!🥺❤️you the best🧸
@Excelsiussten2 ай бұрын
Can i get an activity about stoichiometry only for practice 😢
@mbongenipshange44147 ай бұрын
From Avogadro's number 6.022 ×10 what if it's 2 mol does Avogadro's Number Change?
@chulumancomakalima7884Ай бұрын
Mam Sulphur is 32 and you wrote 12 so i think your anwere at 15:35 is wrong
@missmartinsmathsscienceАй бұрын
Hello please see my pinned comment. I addressed this shortly after I filmed the video
@chulumancomakalima7884Ай бұрын
@@missmartinsmathsscience i saw it thank you so much
@vloggervibez93173 ай бұрын
May you please do past papers in this topic please❤
@vloggervibez93173 ай бұрын
For grade 10
@JusticeM-d6g3 ай бұрын
How did you get Na
@YamkelaMadikizela-nm8ig2 ай бұрын
Mam how come your sulfer's atomic no is 12 but mine is 32
@missmartinsmathsscience2 ай бұрын
Please read my pinned comment
@NATHASHAPalesaАй бұрын
Okyy why you say 100 in the molar mass
@phindilemalevu1262Ай бұрын
Forever wena miss❤❤❤
@bigsistershelpinghand1279 Жыл бұрын
thank you so much!!
@missmartinsmathsscience Жыл бұрын
My pleasure 💛
@mulondololo9297 Жыл бұрын
Thank you mam❤❤
@missmartinsmathsscience Жыл бұрын
Most welcome 😊
@vutlharimbhiza11153 ай бұрын
Thank you so much
@StudDrip-x3m Жыл бұрын
Im still abit confused😅 but i understand way better then class😅
@missmartinsmathsscience Жыл бұрын
What can I still help with? I have smaller videos that go over each formula in more detail. Check out the playlist :D
@UB-SSHORTS2 ай бұрын
You are helping me so much mam 🫶
@DerickJnr Жыл бұрын
22:44 there is a mistake
@missmartinsmathsscience Жыл бұрын
There is no mistake at that time.
@ShivastiSingh Жыл бұрын
@@missmartinsmathsscience0.2÷ 22.4 = 8.91×10^-3 when I entered it in the calculator..what do I do?
@williamhachem40337 ай бұрын
@@ShivastiSinghwhat?
@vloggervibez93173 ай бұрын
@@ShivastiSinghI got the same answer
@HopeliciousSingasi2 ай бұрын
Sulphur is 32 not 12
@missmartinsmathsscience2 ай бұрын
Please read my pinned comment.
@infinitygamer9128 Жыл бұрын
i commented yayyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!
@emmanueltshimomola5703 Жыл бұрын
Thank soo much ❤🎉🎉❤😊
@missmartinsmathsscience Жыл бұрын
🩷🩷🩷
@Excelsiussten2 ай бұрын
Thank gof 😂i was going to ask wat happened buh i understand mistakes happens