Chemistry_Calculating the Equilibrium constant

This is a short lesson on how to tackle questions relating to the calculation of the Equilibrium constant, Kc value

[@workfromhomewithqueenzeeh2854]

I'm actually studying this for my little brother. I did this in 2019 but then I had forgotten some of the things and I want to help him prepare for his final paper. Thank you so much for this. I no longer have any questions and I can help him without doubting myself. He is not someone who asks for a lot and this is the only thing he needed help with, I can't disappoint him.

[@siyamthandamadziba3140]

Watched this video a day before writing a test and I got 83%😊😊tank you❤️

[@MlungisiNkosi]

What a yeses!!! I want to hear more and more of these stories 😅

[@MlungisiNkosi]

Congratulations!!!

[@malusiscout5643]

The first answer is actually 5.14. You didn't square the 0.6 : )

[@MlungisiNkosi]

I appreciate you for pointing that out. It was a mistake on my part . Thank you 😊

[@nomadnuggets716]

Yes I was just about to comment that

[@Wasemzambeya]

​Nami I got confused initially

[@pearlm7992]

❤

[@zivurgeg7421]

thought i was tripping alone

[@sewelamogale1512]

As matriculants of 2022 we appreciate all your help because we are writing today and you've made everything simple ,God bless😊🙏

[@MlungisiNkosi]

It is my sincerest pleasure to assist you 🤗❤️

[@beatalabercensie545]

Matric class of 2022 🥰❤️ Super grateful for this channel. Extremely helpful. Thank you sir Mlu!

[@MlungisiNkosi]

You're absolutely welcome. Please share

[@nkatekomkhonto4155]

Mistake question 4 is not 1.436 is 2.436

[@beenthatsal]

i saw your youtube channel yesterday while studying for physics and now im doing chem honestly your students are lucky to have you. you explain topics in a very easy and clear way thank you so much for your hard work 👍🏻

[@MlungisiNkosi]

Thank you so much for your comment… I really appreciate it

[@sekukunitlhakung2458]

sir the kc on the first example is 5.14 thank you sir i learned a lot from you.🙂

[@siphamandlalugongolo3326]

you know I was wondering yesterday, if this guy would start new videos on chemistry cause the day before yesteray you just help me with momentum. I'm so thaankful you came up with another video, keep it up sir.

[@MlungisiNkosi]

You're welcome 😊

[@refentsematimela1569]

Greetings sir, when you inserted the 0.2 in the calculator didn't put and you didn't square the 0.6 so please check your answer again I think you aren't you supposed to be 5.14.

[@refentsematimela1569]

When you inserted was 0.6 not 0.2

[@saintoraa]

@@refentsematimela1569 noticed

[@isaacgumbu2140]

@@refentsematimela1569 that's correct he didn't square the o.6 in the first scenario.but overall I understood everything he taught it was clear and precise...thank you once again you are doing a great job.

[@kuhlekalolo8908]

He helped me with paper 1,Work,Energy and Power yooooh I am so grateful he's doing these videos😭😭♥️♥️♥️♥️♥️

[@MlungisiNkosi]

I'm happy to hear that the lessons made a significant impact on you. Let's kick paper 2 in the face 😊

[@bonniem1865]

I’m literally writing a short test on this tomorrow and before this video I didn’t know how to do Kc. The funniest part is that this whole week approaching my test date, despite me not being able to do Kc, I was not worried about not understanding because I know my favourite KZbin teacher Mr Nkosi was going to teach me more in 50 minutes than I learnt in my 40 minute lesson🤣 I really shouldn’t depend on you this much but I know whenever I don’t understand a topic and you have a video on it, I’ll be okay. Thank you sir❤

[@luyandandwandwe2057]

you changed the way i used to view physical science and for that ill always be grateful..im now doing bachelor of science at wits and all thanks to you ....love u so much sir...

[@MlungisiNkosi]

Wow wow wow!!! All the best on your journey Luyanda. My prayer is that someday when you’re doing amazing things in this country, you’ll be able to help others.

[@ivyt2166]

I'm currently taking a hybrid chemistry class and had a difficult time understanding these concepts until now. You are a WONDERFUL teacher. Thank you for creating this video and walking us through these problems!

[@MlungisiNkosi]

You’re welcome ☺️

[@TDEWU]

This is so helpful, I was using ratios in the equilibrium column*glad to note that I'm not supposed to do that*. Thank you so much❤️

[@MlungisiNkosi]

Thank you so so much for the feedback and I'm glad I could assist.

[@ThabangMofokeng-lr7nq]

I can never go wrong with you sir😭

[@MlungisiNkosi]

Awesome 🤩

[@refiloemanana4957]

Watching this the night before my chemistry prelim 😭really helped thank you from eSwatini 🇸🇿

[@MlungisiNkosi]

A sibonge Refiloe... We welcome eSwatini to the family 🇸🇿. I need to reconnect with my roots yazi 😊

[@nicolem52]

@@MlungisiNkosi guessed it !! Ur swati 😂😂

[@gabriellabarker5472]

I wish I had found you way before finals because the way you explain the work is just the best

[@MlungisiNkosi]

Well at least you’re here now…

[@gabriellabarker5472]

Yess and I'll make the most of it ☺️

[@rofl.connoisseur]

i am so glad i found this channel i remember the times when i used to hate physics but this channel has made me to love physics

[@MlungisiNkosi]

You’re most welcome 🤗

[@alex_fromrsa4815]

I'm writing a chemistry exam tomorrow and these equilibrium questions are all that I struggled with. Thank you for helping me and wish me good luck.

[@MlungisiNkosi]

After polishing up on this… Luck is the last thing you need. Go get them tomorrow 🥸

[@indiraramlochan9642]

I used your videos to help review so I can help my daughter and they were brilliant. Thank you so much, you are an amazing teacher. Your students are very fortunate. 🙏❤

[@MlungisiNkosi]

Thank you so much. It’s great to see parents become this involved in their children’s education. I’m happy to help

[@kekeseheri8342]

I don't even know what to say thank you very much you are truly a god sent ❤

[@keithnkuna4181]

Your videos are super helpful♥️. Thank you so much for taking your time and us academically

[@MlungisiNkosi]

You're welcome Keith 😊

[@nontobekombatha5960]

I really thought I was dumb but now that I’ve watched this video wow u the best 🙏🏾

[@MlungisiNkosi]

I'm glad you no longer hold such a view about yourself... My aim is to prove to anyone that they are capable beyond limit. Let's see those results improve... Yeah?

[@thembinkosisbusisomasinga2811]

Thanks very clear video, i am recapping for my Chemical Engineering training in sulphuric acid industry

[@kabelomapheto1666]

not all heroes wear capes, good sir u saved my grades

[@MlungisiNkosi]

I've been called a lot of things but a hero isn't one... Thank you so so much 🤗. May your grades keep improving till you score that distinction 🤗

[@lithalethumhlom6795]

hi MR Mlungisi yesterday I started with chemical equilibrium let me tell you now it is not easy ma'am is teaching us the R.I.C.E method but I seem to find your method easier so thank you so much for your great work and teachings

[@MlungisiNkosi]

You’re most welcome 😊

[@tshegoshezi8304]

i also find the r.i.c.e.c method hard especially when calculating the change or equilibrium but watching mr nkosi 's videos help me a lot

[@naomii.m6539]

This was very helpful. Im now confident with my exam tomorrow, thank you❤

[@MlungisiNkosi]

Music to my ears hey 😍

[@katekaningobeni6060]

Your videos are so helpful, thank you so much 😉 now am going to get my distinction 😍🤩

[@MlungisiNkosi]

Oh man... I love this comment 😍. Go get them girl

[@magautaraphahlelo9384]

You always make a huge difference thank u

[@MlungisiNkosi]

Thank you

[@mpumimaarman426]

Thank you sir,this video came right on time😭❤️

[@MlungisiNkosi]

You're most welcome

[@ntlakusomthuzi887]

Class of 2023 ❤❤❤we appreciate it..im writing tomorrow

[@MlungisiNkosi]

All the best

[@ItsMissCloudy]

My physical sciences teacher!! Thank you so much sirr

[@MlungisiNkosi]

You're most welcome 😊

[@sabelosithole5763]

Thank you Sir for pulling through for us

[@MlungisiNkosi]

You're most welcome... I pray that I play just a small part in making your dreams a reality

[@Abenathi8027]

Thank you sooo much..!!! I'm writing tomorrow and I feel so prepared than ever.

[@MlungisiNkosi]

You’re welcome ☺️

[@rirhandsungobeni4620]

Yooh malume I can't thank u enough ❤ I didn't had I dea what's going on with calculating Kc but after watching ur videos ❤🔥 I know understand ❤ were so blessed to have u Malume Nkosi

[@MmathapeloMolomo]

May God bless you sir❤️

[@sheriquenakedi6067]

Sir in the last question you did isnt the answer supposed to be 2.436 when we calculated the change for CO

[@MlungisiNkosi]

I think that’s what I got as well

[@Thee.Mandla_Smindlos]

I also saw it he multiplied the decimals and left the actual whole number but he later fixed it mos

[@zenamichelleprincezeemiche4729]

My first physics experience and it satisfies asmr mathematics.

[@MlungisiNkosi]

That's incredibly pleasant to hear ❤️

[@liyemakolisi]

Your videos help me so much. THANK YOU! ❤️

[@MlungisiNkosi]

You are so welcome!

[@traciamaleetjane2025]

Hi sir hope you good... ummm on the second example aren't we suppose to use 1.2 instead of 2.8.?

[@djtonict6629]

Thank you much your videos are helping me, I find it hard to understand my lectures

[@MlungisiNkosi]

Thank goodness uncle Mlungisi is your plug....

[@metsahope242]

Thank you uncle I ate on this question❤

[@Msnicole777]

Much appreciated thank you!🇯🇲

[@MlungisiNkosi]

You're welcome. It's great to see people in the Caribbean watching this channel. Thank you for being part of the family

[@noodleplexium5953]

Thank you so much! I finally get it and perhaps I could get a 70 at the least 😂🤙

[@MlungisiNkosi]

I think we can afford to aim higher...

[@mandygumede3376]

Hey Sir I’m so happy to say I wrote my paper 2 today and for the first time I came out of the exam venue with a smile ,I have been watching all your playlists to learn section by section and I’m so grateful to have discovered this channel ,you have been a great help to me . There are so many sections that I’m sure I totalled and chemical equilibrium was one of them I could feel it while writing and the memo confirms it all!! I would like to say thank you so much for your hard work and dedication into making these videos for us , you are a lifesaver 🙌🫶🏾

[@MlungisiNkosi]

Congratulations to you. Please do come back to tell us how well you did

[@calvinbafshoe2626]

Thank you so much for this. I'm preparing ahead.

[@MlungisiNkosi]

Phenomenal teacher you are sir. We need more like you

[@calvinbafshoe2626]

@@MlungisiNkosi Thank you Mr Nkosi 🙏 I'm a new teacher fresh from university. I'm just reminding myself

[@nhlanhlashabangu6870]

Tnx for making our lives easier honestly I couldn't understand those 8 year old videos

[@MlungisiNkosi]

You're so welcome... I can't wait to see those glamorous results.

[@azifata9827]

Can you also do organic chemistry 😭😭😭❤️your videos really helped me yesterday

[@MlungisiNkosi]

Oh my!!! I honestly wish I had seen your requests earlier. I really would have. I will only be able to cover Electrochemistry for now

[@user-vu8cn6ff5h]

Malume looked so cute hle😂😭😭😭😭😭

[@akhonamemela1002]

Thisha so what can we do in a situation where we are only given the information about the solid and asked to calculate kc

[@isabel.maredi]

Yoh am I dreaming 🥺❤ thank you sir

[@MlungisiNkosi]

Hopefully not... Lol

[@thobilemasoka6655]

Thank you so much sir, your videos are really helpful 🙏❤️❤️❤️❤️

[@MlungisiNkosi]

You’re welcome

[@nishantpatel3769]

Thank you so much Sir....really appreciate it...💐

[@MlungisiNkosi]

It is my sincerest pleasure 😊

[@ntokozoskhosana6322]

Thank you sm for this! It's soo helpful; I'm writting tomorrow

[@MlungisiNkosi]

All the best Ntokozo

[@ntokozoskhosana6322]

@@MlungisiNkosi I nailed kc!😭🤣🤣🤣🤣🙏thanks again for simplifying it

[@MlungisiNkosi]

@@ntokozoskhosana6322 fantastic to hear 😅

[@Star_M21]

Thank you♥️as if you knew how bad matrics need this rn

[@MlungisiNkosi]

I'm glad I could assist 😊

[@dikeledi7975]

on your first example you forgot to your squared on the calculator when you were doing your kc calculation thats why it gave you 8.57 but then i understood mistake happens 😅and thank you so much now i understand chemical equilibrium constant🙏

[@MlungisiNkosi]

Thank you for pointing it out 😊

[@horeciarche8092]

You so helpful mlungisi l see myself aiming a distinction in chemistry

[@MlungisiNkosi]

That’s so awesome to hear that

[@user-it8ul5sh9y]

Just watched the video and I'm writing a mock test today

[@MlungisiNkosi]

All of God’s best 😊

[@nicolem52]

Very helpful !! Thank you sir

[@MlungisiNkosi]

My pleasure....

[@LifeasMpumiie]

So helpful 😩❤️ please do more videos where you answer question papers

[@MlungisiNkosi]

I'll do so once I'm done with the content

[@LifeasMpumiie]

@@MlungisiNkosi Thank you soo much

[@yamkelabrownnguse2174]

Can you please do 1st year varsity chemistry (equilibra and organic chemistry) , your videos and the lessons in them helped me passed matric with high flying colors for that I am grateful. Please look into my request, I won't be the only one grateful for this, thank you 🙏 ❤

[@MlungisiNkosi]

I love this suggestion 😊

[@fazalrahim6849]

Absolute genius... Excellent work well done from UK

[@MlungisiNkosi]

We welcone you to the family all the way from the UK 🇬🇧. Thank you for appreciating our work and I definitely hope it makes a difference 😊

[@fazalrahim6849]

@@MlungisiNkosi can you please send me links to enthalpy changes questions you might have

[@MlungisiNkosi]

@@fazalrahim6849 I don't have a link on those specific questions but I can give you a link to accessing past exam questions papers based on the South African curriculum. You will find questions on enthalpy in the past papers. Link below: www.education.gov.za/Curriculum/NationalSeniorCertificate(NSC)Examinations/NSCPastExaminationpapers.aspx

[@fazalrahim6849]

@@MlungisiNkosi amazing Thank you

[@MlungisiNkosi]

@@fazalrahim6849 You're welcome

[@bhekusigcinongcongo5531]

Sir does it happen to be given n unbalanced equation without being told

[@yolandamtshizana6529]

Very helpful sir thank you so much🧡

[@MlungisiNkosi]

You're most welcome 😊

[@ZinathiMasina]

Shout out to you for helping me as I check in a day before my trails💃🕺

[@MlungisiNkosi]

Why a day before though 🥴

[@ZinathiMasina]

@@MlungisiNkosi trust me you don't want to know

[@luyandangcobo8279]

Thank you sir!

[@lindaubuhlemenzi5087]

Thank you very much sir🙏😭❤️

[@MlungisiNkosi]

You're most welcome Buhle 😊

[@rowshanaraakter1023]

YOU ARE THE BEST KZbinR !!

[@MlungisiNkosi]

Thank you so much

[@zakariyarazak7802]

my brother, you are goated

[@MlungisiNkosi]

Thank you 😊

[@hlabelelantshakaza679]

writing an exam tomorrow. it's a common paper for grade 12😭😭😭. thank you for this!

[@MlungisiNkosi]

You’re welcome ☺️

[@zuheylahime1203]

I can’t believe this 😭😭 Can you please do organic chemistry ?

[@inspiringlounge3784]

Yes Please , I also struggle with Organic Chemistry

[@MlungisiNkosi]

Oh my!!! I'll only be able to cover Electrochemistry today. It's still loading... Organic chemistry is a huge section. I've been thinking about ways to tackle it 🙆🏾‍♂️

[@zoewitbooi5971]

This helped so much !!!!!! thank you!!!

[@MlungisiNkosi]

You’re most welcome 🤗

[@zethupromise3177]

💕💕Sir could you also do acid and bases calculations

[@MlungisiNkosi]

Please look out for it today.

[@zethupromise3177]

@@MlungisiNkosi ok sir thnx a lot

[@azazelssj4758]

Hi sir I've been following you for a while now... Is there a video of Chemical equilibrium where they want you to determine the Mols of any substances or even maybe the volume of the container?

[@MlungisiNkosi]

Yes... Please check Revision Playlist

[@tsholow1933]

You make everything seem so easy 😭😭

[@MlungisiNkosi]

That’s because everything is so easy 😊

[@Buhleh_Hlabisa9]

You the best 🙌

[@MlungisiNkosi]

Much appreciated. I'm glad you enjoyed the lesson...

[@kriyaramjuttan9499]

Thank you for the great lessons! Just one question, I don't see why for the second example in finding x, is it necessary to fill in the whole table if they asked for the initial number of mol of H2. They told you that you start with 4 mol of N2, and the molar ratio of N2 to H2 is 1:3. So can't you just say 3×4=12mol of H2 initially. (even though the more specific answer is 12,24...

[@MlungisiNkosi]

No you must fill in that table. Coincidentally the answers are close but that isn’t always the case

[@AyviiCorrey]

Thank you alot!!!! I've suffering so hard

[@MlungisiNkosi]

You’re welcome

[@tanyabwanya9932]

lovely lesson 🙏

[@MlungisiNkosi]

Thank you

[@lehlohonolo2051]

Thank youuu very much sir😭😭😭❤❤❤❤

[@MlungisiNkosi]

You're welcome 😊... I'm getting a lot of these tears lately, lol

[@nonselelogamede7802]

Thank you sir this was very helpful

[@MlungisiNkosi]

Good to see that you are working 😊

[@thabisodlamini9676]

Yohhh you have just saved me for monday

[@MlungisiNkosi]

I'm glad to hear that... All the best for your exam

[@ZinhleMfusi]

I’m writing tomorrow 😭😭 and this helped me

[@MlungisiNkosi]

Awesome 😊

[@MlungisiNkosi]

All the best for your exam

[@Refiloe_Basetsana]

Video helped me a lot ❤

[@MlungisiNkosi]

Glad it helped 😊

[@oneyy6165]

Hello sir, does the equilibrium column represent moles that were not used in the reaction?

[@MlungisiNkosi]

Yes it does for reactants

[@ath9006]

I’m rewriting extremely helpful 👍🏾👍🏾💯

[@MlungisiNkosi]

You're welcome 🤗❤️

[@thembamahlangu3811]

Thank you so much for helping ❤️🤞🏼 it really helped me yooh😱💯💯 can you plz help with mathematics as well 🙏🙏

[@MlungisiNkosi]

Yes I will...

[@JeminaNolwazi]

👏👌thank you sir

[@MlungisiNkosi]

Welcome 👍

[@nkosinathithabani5676]

Please do more on P2...acid and bases and electrochemical...anyway thank you so much

[@MlungisiNkosi]

I will load Electrochemistry tonight. Please be on the lookout 🙏🏾

[@keamogetswemokgwatsana853]

Thank you so much❤!!! 😇🌟

[@MlungisiNkosi]

You're welcome

[@youtubecatchup]

thank you so much sir!

[@MlungisiNkosi]

My pleasure 😇

[@rahulsingh-jx8vp]

love the videos sir

[@MlungisiNkosi]

Thank you.

[@rudzanivincent2289]

you are the best

[@MlungisiNkosi]

Thank you Rudzani. I hope you will in-turn do your best to help others.

[@s.Kokiii]

Is there a difference between this and the rice mmethood?

[@zassamplemaker1194]

Good day sir l would like to ask on the 2NH3 question with the reactant x-8.4/0.8 being cubed why isn’t that being implemented when we get the value of Z for example: (x-8.4/0.8)^3=4.80

[@MlungisiNkosi]

Please provide time stamp

[@zassamplemaker1194]

35:30

[@zassamplemaker1194]

We get that the concentration of Hydrogen is cubed so why don’t we cube it when we equate it to 4.80

[@tosinadejayan9277]

What do you mean where the reaction takes place?

[@kutlwanomelato7209]

Thank you Sir😊

[@MlungisiNkosi]

You're welcome 😊

[@itsjustnomusa5191]

May you please explain how you would get the answer for 6.2.2 of the last question that you did from the 2019 past paper.

[@MlungisiNkosi]

You calculated the number of moles of CO2 = 1.38mol. Because you have a 1:1 ratio between CO2 and C, it means that the moles of C =1.38mol. Use that to get the mass of Carbon. I got 16.58grams

[@itsjustnomusa5191]

@@MlungisiNkosi alright, I got that too. Thank you 🙂🙏🏽

[@Simphiwe20]

Plz help us with maths it will be very helpful Thanks a lot for the physics lesson they are helpful

[@MlungisiNkosi]

It's my pleasure ❤️

[@MlungisiNkosi]

You're welcome... Help is on the way.

[@xikhongeloxikho4970]

sir pls can u do a calculation of kc when given a graph and we have to calculate kc by analyzing the graph plsss

[@MlungisiNkosi]

I'll be doing revision edition videos... I will certainly add that in. Thank you

[@Thato10111]

Danko sir🔥🔥🔥

[@MlungisiNkosi]

Most welcome

[@Mel.okuhle]

Thank youu ♥️♥️

[@MlungisiNkosi]

You're welcome ❤️