Grade 12 Chemistry | Rates of Reactions | May/June 2022 | Question 5 | Mlungisi Nkosi

[@Katlego_200]

Thanks!

[@MlungisiNkosi]

You’re welcome

[@ntwisisochauke3495]

Just before the big day. Thank you sir🙂

[@MlungisiNkosi]

You’re welcome ☺️

[@clairepurdy7238]

Thank you for the videos sir, I got 92% for the physics paper 2 on Tuesday🔥 Didn't do so well in paper 1 tho🤦‍♂️

[@MlungisiNkosi]

You’re making good progress. Well done

[@nobuhlebuhlerh6121]

Thank you Sir your videos are really helpful for revision and now I can understand other things better all thanks to you.

[@mnash_mcm18]

Your channel is big I remember when you had 30k. Thank you 😊

[@MlungisiNkosi]

I’m grateful to every single one of you

[@jaelbekanabeya617]

Thank you my favourite uncle♥️♥️your videos always get uploaded at the right time whenever I need them

[@MlungisiNkosi]

Favourite Uncle has got your back

[@thandazoselz]

thank you sir. im busy watching the orgarnic molecule playlist 😭 its so long but good also

[@MlungisiNkosi]

Well done 👍🏾

[@Bignase17]

I was actually waiting for this thank you Mr M

[@MlungisiNkosi]

My pleasure 😇

[@refilwejantjie3870]

24+12+3x16 (where did we get 16 and 3 from from). i know about 24 and 1w we got it from magnesium

[@ntokozomahlangu396]

Periodic table (at the back of the Question paper ) we use relative atomic mass

[@nomfundomazibuko5927]

Thank you sir. Needed this. 😊

[@MlungisiNkosi]

You’re welcome

[@jezamphakade5349]

❤❤

[@masindimbulaheni4462]

Thank you uncle, your work is hopeful

[@MlungisiNkosi]

Thank you 😊

[@boipelo___]

good day sir…is there any particular reason why you chose to use the mass as the amount of CO2 when substituting into the rate formula instead of the number of moles you calculated?

[@MlungisiNkosi]

Yes… the rate was expressed in grams per second

[@jezamphakade5349]

❤

[@thapelodikgwatlhe5606]

Thanks uncle.😁

[@motlalepulatsehla4394]

Still confused, how do we know which reaction to use when we are looking for number of mol?

[@MlungisiNkosi]

I don’t quite know how to assist. Please ask differently

[@gamecomgc9202]

Sir 4 5.2 why do u say concentration of hcl

[@akhonathandoluhle8540]

Sir can I ask why did you use MgCo3 and Co2 instead of MgCo3 and HCl

[@MlungisiNkosi]

HCl was in excess…

[@asy42699]

may u make a playlist for reaction rates, btw good stuff man

[@MlungisiNkosi]

I think it’s there already

[@sluggy_slime]

Finally🛐🔥

[@MlungisiNkosi]

Uncle Mlu works hard

[@aphelelephindiwe7943]

Sir if i used 0.6 instead of 0.5 for ∆R am I wrong ?

[@MlungisiNkosi]

But that isn’t the value at 40•

[@marvinsroom1384]

It’s actually 2.64 mols sir, for 5.4.1 😅

[@MlungisiNkosi]

Correct

[@DaphneyDipuo]

I've gained something ❤😊

[@MlungisiNkosi]

Great… I’m glad you did

[@khanyisilerejoice691]

Thanks sir can you please do more past question paper 2 m struggling ngo p2😭

[@MlungisiNkosi]

Most definitely

[@kowkieychubby598]

At 14:26 I get 5.28min sir kindly check it🙏

[@raphaelmagagula4091]

Thanks uncle ☺️

[@MlungisiNkosi]

My pleasure 😊

[@luyandanene9724]

Great lesson

[@MlungisiNkosi]

You’re welcome

[@sfundolwandiswa_3414]

Thank you very much.

[@MlungisiNkosi]

You’re welcome ☺️

[@ruthc6791]

Great video. In future videos please use the split screen function since the page gets messy and things get hard to read🙂

[@MlungisiNkosi]

Noted. Thank you for the feedback 🤗

[@Hanakelkay]

Thank you sir

[@MlungisiNkosi]

You’re welcome

[@luyandanene9724]

Thank you

[@MlungisiNkosi]

You’re welcome

[@phathumainganya4231]

Good day sir, why does the MgCO3 and CO2 have the same ratio?

[@MlungisiNkosi]

Check the reaction…

[@preciousmmamokgobo6268]

Thank you

[@MlungisiNkosi]

My pleasure

[@simtha_m]

Thank you sir

[@MlungisiNkosi]

You’re welcome ☺️