Grade 12 Chemistry | Chemical Equilibrium | May/June 2022 | Question 6 | Mlungisi Nkosi

[@MlungisiNkosi]

Please note that I mistakenly forgot to add 0.79 moles of N2O4 that were added. You must add those to the 0.81 moles from the first equilibrium and that will be your initial moles for the second table. I sincerely apologise for this error. I will re-record to fix this.

[@Hanakelkay]

Oh.ok thank you sir

[@nobuhlebuhlerh6121]

No problem Sir Thank you

[@demigod7572]

Anyone else cramming for tomorrow?

[@Mzansi_football-b5l]

We are together🤣🤣

[@ChunSwaeRrrr]

🥲😭

[@MlungisiNkosi]

You don't need to cram... Just watch to understand

[@Mzansi_football-b5l]

@@MlungisiNkosi yea i was attempting some question paper based on the topic...its really working❤🙈😁💫

[@mahlatsemokakati7796]

Bro 😤🤣

[@Mzansi_football-b5l]

We highly appreciate you Uncle 🥳❤🙏May God bless youuuu...i have been struggling with Physcics but ever since i followed your videos my perfomance is much far better...

[@MlungisiNkosi]

Awesome... All the best.

[@oratiloelethale5876]

Hey uncle mlungisi, today I wrote my chemistry exam and wow i enjoyed it. All because of you 💕🙏🔥 thank you🥂💪

[@MlungisiNkosi]

Wow!!! I’m happy to hear this… Can’t wait to hear about the results 😊

[@MlungisiNkosi]

@@fusiestatv4715 Gauteng

[@phumzilemmutlwane2057]

Thank you so much Sir. Listening to your videos, after being confused for so long, is indeed a rescue.

[@MlungisiNkosi]

I’m glad it’s helpful

[@sluggy_slime]

Sir there are some papers where they give us the percentage at equilibrium instead of the mole how do we account that?

[@MlungisiNkosi]

I answered such a question in one of the videos in the playlist…

[@sluggy_slime]

@@MlungisiNkosi can u please refer me to the video

[@T.o.J.H]

You thanks alot I'm writing paper 2non Tuesday and really needed this

[@relebohilemokoena1504]

Lucky you I'm writing tomorrow

[@MlungisiNkosi]

Good luck to the both of you

[@sinakhokonkehlatshwayo9947]

Meneer on the last question, what about the value 0,79

[@luyandamadlala3580]

Nam iyon inteng diday leyo

[@sinakhokonkehlatshwayo9947]

@@luyandamadlala3580 I think maybe that was his mistake, he didn't consider the value 0.79

[@Muzilft]

Yea he forgot about it

[@MlungisiNkosi]

Oops my mistake… Indeed I forgot to add it. Thank you for making me aware of this. I’ll re-record to fix it. I apologise

[@leticiadhlamini6663]

So sir does this mean that we going to add 0.79 to the 1st equilibrium to get our initial mol for N2O4 on the 2nd table ?

[@mathebemokwana7678]

why the 0.79 moles that was added in the equilibrium was not included in the calculations

[@MlungisiNkosi]

It was my mistake. I’ve pinned a comment and I’ll re-record to rectify this

[@TebogoMoletsane-dx3ct]

Sir you just said when you increase temperature the rxn that will be favoured Is endothermic rxn ...so in this reaction the reaction favoured is the forward reaction...so when Increasing temperature the reverse rxn will be favoured....so this can mean that the reaction is cooled as we will increase the amount of H2 and the amount of I2 then we decrease the amount of HI .....is it true or am wrong sir?

[@tebellomotsoeneng2028]

Wow what a wonderful presentation

[@MlungisiNkosi]

Thank you

[@nomzamotinkyonnetmpala6842]

Sir how do you answer these types of questions🙋, e.g how will increase in pressure affect the following. These type of question they are really challenging, how this affect the following it really confusing

[@MlungisiNkosi]

Yes I’ve answered a lot of those

[@nomzamotinkyonnetmpala6842]

Where sir please tell me, l will go and rewatch again

[@nomzamotinkyonnetmpala6842]

Where sir please tell me, l will go and rewatch again. If you don't mind sir, l beg please make a video for us, 2020 September question 6 about chemical Quilibrum. Maybe it might make me to understand the concept

[@dannyocean6211]

We highly appreciate you sir😭😭💯🌻🤞🏿

[@MlungisiNkosi]

Thank you all and you’re welcome

[@melisasandile9611]

Sir,the Kc expression is the product over reactant and my concern is why did you not change it,when the new equilibrium was re-instated?The product is now (NO2),as the reverse reaction is favoured.

[@MlungisiNkosi]

That would be a grievous error. Even though the reverse reaction is favoured, your products are still what is on the right hand side of the reaction.

[@ntandoumbuyazi6820]

Hi Sir... Can you please help me with Acid and bases

[@MlungisiNkosi]

I’ll upload by tonight. I promise

[@vukosijeff8551]

Sir um confused how do we get that 0.6 on change coz do we calculate it like this 2NO -N²0⁴ 2(1.6) but I get 2.4 I knw um confused I have been making that mistake eversince

[@vukosijeff8551]

Sir can you pls get back to me when your not busy or maybe um not explaining my question in the right way?

[@Muzilft]

Hlw sir I have a question on the table I thought we find the sum of the moles on the products side and I see that u have found a difference on both sides Plz help me understand

[@MlungisiNkosi]

You’re right… But this time, the reverse reaction was favoured so we subtract on products and add on reactants side

[@Thefatdogcat]

How many days before a physics/ chem exam should you start studying

[@tokotk2419]

Thank you sir nkosi

[@MlungisiNkosi]

You’re welcome

[@unitbee_sa]

Sir i get the value of X=2,39 or X=-1,77 with the Quadratic

[@MlungisiNkosi]

Did you include the 0.79

[@unitbee_sa]

@@MlungisiNkosi yessir

[@HumanOID4]

congrats on 60k my fav teach ( is it like bonus day every time exam season rolls around 🤣)

[@MlungisiNkosi]

Thank you 😊

[@ntsako.moyana]

the last question i used quadratic formula and got the value of x as 2.39 or -1.77

[@MlungisiNkosi]

Thank you... You're very brave 😊

[@nobuhlebuhlerh6121]

Thanks for the help sir but I am a bit confused in 6.1.3

[@MlungisiNkosi]

About?

[@nobuhlebuhlerh6121]

@@MlungisiNkosi I don't understand why we said the answer is cooled and talked about the forward reaction that was favored(reactants) while it was the reverse reaction(products) which increased

[@tetelomashifane7368]

Thank you so much sir❤

[@MlungisiNkosi]

You're welcome

[@zamekaqueeniekotelo2891]

-0,83mol

[@thuthukileradebe8372]

Thank you so much ....

[@MlungisiNkosi]

You’re welcome ☺️

[@MlungisiNkosi]

You’re welcome ☺️

[@MlungisiNkosi]

You’re welcome

[@lil.riicch5084]

Thank you soo much sir

[@MlungisiNkosi]

You're welcome

[@gotdamncupid7612]

Anyone else cramming for today??

[@MlungisiNkosi]

Hhhaaaaa Mara uncle isn’t happy with that… let’s prepare better in future neh

[@zamekaqueeniekotelo2891]

enkosi malume

[@MlungisiNkosi]

Wamkelekile