Chemistry | Acids and Bases | Titration

[@wakeupfakeup]

I wrote my Chemistry exam today. Studying has been hard because Load shedding this side is ridiculous and everything from my textbook to my study schedule is on my laptop and my tablet. I don't think I got marks that are out of this world, but I am proud of myself. I didn't skip a single question and I even had some spare time, I didn't cry or skip large sections. I am way more optimistic then I was with my Physics paper. You videos helped me so much, I hardly listen in class, because I don't like my teacher's teaching style. I think I have an opportunity to improve and even get a 70% for my end of year marks. Last year I got about 30% as my final mark for Physical Sciences (I transitioned from Cambridge to Caps) I think what's nicer this year is that I get to start the school year from the beginning with this new curriculum and I did a lot of the things I am doing now in my IGCSE. Thank you from your videos...thank you so much.

[@MlungisiNkosi]

Hi Inolofatseng, I'm elated to hear that you're improving. I still want to appeal that you try to listen to your Science teacher. My videos are to supplement what s/he is already doing in class and not to serve as a replacement at all... It's a collaborative effort aimed at helping you move forward with your future. Is it possible for us to aim for 80%. Let's do it... I know you can 😊

[@sandilexaba750]

Thanks for ur great advice sir

[@MlungisiNkosi]

@@sandilexaba750 it is my sole pleasure to serve 😊

[@calvinbafshoe2626]

@@MlungisiNkosi I love your response here. It's constructive! Learners shouldn't ridicule teachers and compare themselves. Every teacher has their own different teaching styles.

[@MlungisiNkosi]

@@calvinbafshoe2626it's a team effort. We are all partners at this 😊

[@t.s5806]

Sir thanks to you, I got 92% in my last physics test. I know this video is on chemistry, but keep up the good work.

[@MlungisiNkosi]

Wow 😱. I've always longed for the day when my own students would do better than I... That day is here. Congratulations Sandra 🎉🎊💐

[@dumisamarafu8543]

Wow 🎉

[@lukhanyokalashe5075]

Sir i just wanted to say thank you for you educational video , i was so behind in matric 2021 i watched your videos Physical sciences. Just Got accepted in UFS for Bsc Computer science. You really helped me alot i don't know how can i thank you you are such a blessing i always recommend you to my friends because the way you teach is impeccable. GOD BLESS YOU😭❤

[@MlungisiNkosi]

Thank you so much and congratulations on you being accepted at UFS

[@thapeloalpheusmakinta5543]

Thanks!

[@MlungisiNkosi]

Wola Wola Wola!!!

[@lwazisithole9339]

I've been telling my fellow physicians at school about you✊. You're appreciated sir👊

[@MlungisiNkosi]

You're welcome and thank you for the recommendations

[@mhlengindlovu8450]

Hey Lwazi I thought I’d help you out here. It’s actually Physicists not physicians.

[@MlungisiNkosi]

@@mhlengindlovu8450 Thank you Gatsheni 😊

[@calvinbafshoe2626]

You sir are simply the best. I'm your biggest fan and I would love to meet you one day even though I'm based in Rustenburg, North West. Your content is rich and as a new teacher straight from university come next year I'll be mastering this. Since Acids and Bases is a new chapter to me I didn't do it during my schooling years during NCS before CAPS was implemented and I learnt a lot from this video.

[@MlungisiNkosi]

Thank you so much sir... We'll definitely meet. Perhaps we can even organise revision sessions in your area. What do you think?

[@calvinbafshoe2626]

@@MlungisiNkosi sounds fantastic. I'd love that. That will be awesome!

[@MlungisiNkosi]

@@calvinbafshoe2626 let's talk over Whatsapp and we'll arrange it

[@ntethelelohlatshwayo6907]

Sir can you please also come around my area I want you to help me with my physical sciences🙏

[@Dyan_TPR]

Your videos always make me confident that I'm going to pass this subject👏🏽👏🏽. The person who gave this video a thumb down probably had their phone upside down 😂😂

[@MlungisiNkosi]

Thank you Uviwe... I would not hear of anything else. Let's put that distinction in the bag.

[@dr_logical_b3a5t63]

He was probably crying cuz he used to fail at school and the tears where still in his eyes making his vision blurring when he tried to hit the thumbs up

[@nqobanikhumalo5670]

Im writing chemistry tomorrow after watching this video I will definitely nail that acid and bases section in that paper siyabonga nkosi

[@MlungisiNkosi]

I'm happy to hear this 🤗

[@nsiyoncehlomuka2763]

Omg my daughter wont stop telling me about how helpful your videos are...May the Lord bless you bhuti🙏🙏🙏♥️

[@MlungisiNkosi]

Ncwaaaaahhhh to hear from a parent is absolutely humbling… I’ll forever be grateful

[@favouredlee7835]

Benefiting from these lessons in 2024 from Zimbabwe anyone else from East Africa

[@MlungisiNkosi]

Welcome 🤗

[@mrsclessons7780]

I am a first year physical sciences teacher and I am so grateful for all the videos you make 💜

[@MlungisiNkosi]

You are so welcome!

[@leratohope7247]

Hey sir , I've been feeling insecure lately about this subject since the year had started . I've been on of the people who didn't make it since term 1 & I want to leave this comment here so that i will be reminded how hard this year was because i know I'll make it eventually. Thank you so much uncle Mlungisi for making this subject worth listening to . Don't stop ❤👏

[@MlungisiNkosi]

Thank you Lerato. I know just how hard things can be… Keep at it. You will make it ❤️

[@micaylataylor1523]

Sir you are a gift to this world. Thank you!!

[@MlungisiNkosi]

To this world, you say? ❤️ Thank you so much for the compliment. I'm glad I can play just a small part in making your dreams come true

[@EMMALINACHRISTOPHERJIXBL-wr1mw]

I like the way you explain things .

[@guguqaba7185]

Last term I watched one of your videos before a test & I improved a lot 🤗Thank you so much ......I now understand chemistry thanks to you God bless🌈

[@MlungisiNkosi]

You're welcome... Keep up the good work.

[@guguqaba7185]

@@MlungisiNkosi I will

[@liyemakolisi]

Thank you so much!! It didn't even feel like 45 minutes ❤️

[@MlungisiNkosi]

What a compliment. Thank you...

[@lejeansakoor1088]

This really helped, makes way more sense than the textbook!

[@ClieteyTaylor]

Uhm your new learner 🥺❤️you even teach well than my teacher sir Mlungisi 🥺❤️Ngiyabonga 🔥

[@djtonict6629]

Doing my first year in pharmacy and your videos are really helping me , I wish we could meet and kiss if you don’t mind

[@MlungisiNkosi]

I'm glad the videos are helping you in your career ambitions... As for the latter portion of your comment 🤣🤣🤣🤣🤣🤣🤣🤣

[@GoldenMukwilima-co2hs]

Am very greatful with you sir, your videos have improved me ♥️

[@hlabelelantshakaza679]

Uncle Mlu for president! You are amazing at your work, sir. Thank you so much

[@MlungisiNkosi]

I accept nomination comrade 🤣 Thank you 😊

[@thabangdikotope9795]

Monday I'm Writing Chemistry. All Thanks To You Sir, You Give The Best Teaches.❤️ From Limpopo, Tafelkop. One Love.

[@MlungisiNkosi]

I wish all of God's best for your exam on Monday. Please do come back to give us feedback on how well you did...

[@thabangdikotope9795]

@@MlungisiNkosi Will Do So Sir.

[@sydwellrangile4495]

Ey sir it's amazing how the channel has grown so fast . I mean it's months I have not been logging in bc school is so busy I have to keep up with my work also am a promaths student ( kutlwanong) so I also have to keep with that work as well . So the last time I was here I was doing newtons law term 1 and at that time it was about 64 000 subscribers now it's over that ✌✌❤❤. Also just an update I got 80% on chemistry in my last test at promaths and I remember that Friday I logged in the channel and watched intermolecular forces. Thank u sir ❤

[@MlungisiNkosi]

I’m happy to hear that people from my hood are benefiting. All the best for the year

[@ashleymaesh4470]

Explains it better than my physics teacher,thank you🙏🏽

[@MlungisiNkosi]

Thank you... But please show appreciation to your teacher. You have no idea how much admin work s/he has to do just see to it that you do well. We're all a team here (you, your teacher and I) 😊

[@ashleymaesh4470]

I’ll always keep that in mind Sir,once again Thank you🙏🏽

[@MlungisiNkosi]

@@ashleymaesh4470 you're welcome

[@dinkkystumbler]

Big Thank You from Australia -after many videos I found you !

[@MlungisiNkosi]

You're welcome... I'm glad you find the video helpful. We welcome you to the family 🇦🇺

[@Pretty_Kekana]

Thank you so so much sir, you made acids and bases easy for me🎉🎉🎉

[@Kamo_helooo]

this is tthe best, your work is appreciated sir. thank you!!

[@MlungisiNkosi]

Thank you

[@rethabm]

Sir this video is sooo helpful and I’m not even half way. I just know I’m going to ace acids and bases in my final today. You are amazing!

[@MlungisiNkosi]

This is such a heart-warning comment. Thank you so so much

[@nkhavisokarenbila7587]

You the best sir. I am very thankful and you really make it easier for us to understand.

[@MlungisiNkosi]

You are welcome...

[@albykimscakesnall7207]

You are the best

[@MalatjiShiner-rv1sr]

Wow I got l00%thanks sir🎉🎉

[@MlungisiNkosi]

Well done 🥳🥳🥳🥳🥳🥳

[@akurmawienwek3424]

You are really did a great lesson about acid and base which is very interesting.i wanted to know their difference between acids and bases in their nature.

[@MlungisiNkosi]

Do you mean their physical properties?

[@AJ-qg1su]

excellent lesson with clear explanation of concepts

[@MlungisiNkosi]

Thank you so much

[@tshifhiwaratshibvumo8631]

The day i started watching your video my grade start to change your the best u know wt your doing

[@MlungisiNkosi]

You’re welcome ☺️

[@calebtsikira3623]

The absolute best👍🏿💯

[@sierra29sierra93]

You are a really good person in paper 2, I Learned a lot from you that you.

[@MlungisiNkosi]

Thank you... I'm looking forward to seeing you obtain those great results

[@trustlorrd]

Life saver❤️😭

[@paaalim.2641]

Sir, I don’t understand how you got the salt at 22:50. May you kindly explain to me 🙏🏽

[@MlungisiNkosi]

Please don't get hung up on it. Just know how to use it. You will be given the equation on your question paper. The most important thing is to know what to do with it.

[@paaalim.2641]

@@MlungisiNkosiokay sir, thank you so so much your videos help me a lot 🙏🏽

[@itumelengmapitse5835]

Sir at 33:50,shouldn't we convert our volume into dm³?

[@MlungisiNkosi]

You may…

[@SimphiweSimelane26]

Benefiting from your video in 2024 thank you sir👏

[@MlungisiNkosi]

Most welcome

[@leratomile2599]

Thank you sir this video really helped me ,I'm on the brighter side now ,Your videos are worth melting for.

[@MlungisiNkosi]

Lol... Please don't melt away before you write your exams. Thank you so much

[@likhomava600]

Thank you sir. I always watch your videos for revision, really appreciate you sir.

[@MlungisiNkosi]

Awesome... Thank you so much. I hope they help you

[@rachelnyman7973]

You are so good!

[@Robert-pr3yw]

Thank you so much sir, because of you i got 20/20 in chemistry term 3

[@melucynkosiyangithanda6442]

Thanks 😊 a lot Mr LuH may God 🙏 bless you with many Years 🥺 u make me Love chemistry ❤️

[@thutomawela-dn3rm]

Was writing my Physics yesterday and it went well thanks Uncle Mlu you are a Star 🌟 writing Chem on Monday and this video you doing the most as usual 🙌😎🥰💃🏽💃🏽🙏🙏

[@MlungisiNkosi]

The pleasure is mine ❤️

[@thutomawela-dn3rm]

Though I'm still struggling with organic chemistry,it's showing me flames 😭😭

[@Spyce_mthola]

Any grade 12 cross nighting with me here 🔥❤?

[@VuralBros-mp5xw]

Yebo until 5AM bro

[@thelastuchiha7713]

Hope it was worth it

[@charlenegovinder5993]

Thank you so much for taking your time and for making these videos, they are so helpful 😊 Can you please do more examples on dilution and titration

[@MlungisiNkosi]

It's a pleasure.... I will definitely do the best I can

[@charlenegovinder5993]

Thank you so much, really appreciate it ☺️

[@corneliusgaobusiwe4734]

Think this is the first video I'm watching on your channel MLU, this is the current topic I'm doing at school ,ur lesson is amazing . I see you have been doing lesson here, SUBSCRIBED

[@MlungisiNkosi]

Welcome to the winning team 🥳

[@ethanbramley8106]

I am writing chemistry on monday, I know im getting absolutely bent over, harassment is not joke to all the comments this is not a message about how its gonna change, I'm fucked, I didn't even watch the video but atleastt I got 92 for Ap math So keep up the good work

[@MlungisiNkosi]

Watch the videos and it will help. But please remember, we have zero tolerance for foul language in this family... Please respect that.

[@smokeysa._]

Sir if we use cm³ instead of dm³.Doesn't it mean we'll have to write the the SI unit as mol.cm-³?

[@poopy-sq4wp]

He made a mistake, he was supposed to divide 30 by 1000 to get 0,03 dm³

[@janekananelo855]

Thank you🤗🤗🤗🤗🤗...you're definitely helping me alot😊

[@MlungisiNkosi]

The pleasure is all mine

[@mandytibane2068]

Hey say how did you get the k2SO4(video at 23:06) i dont understand why its k2😢 where does the 2 come from

[@MlungisiNkosi]

Sulphate ion has an oxidation number of (2-) and potassium (1+)

[@loidepanduleni2566]

Hi Mr Mlungisi Nkosi . Can you tell me when it comes to your lessons of chemical Kinetics, how should i listen to them in order?

[@MlungisiNkosi]

Go to the Playlist. It has the order sorted out

[@nonselelogamede7802]

thank you sir you've just made this part easier for me

[@MlungisiNkosi]

I’m happy to hear that Mfundi wami. When you understand, then my work is done

[@moneuamber5948]

This video has been so helpful🤗Thankyou so much , I didn't even realise that this is for matrics but it's almost the same as grade 11 so I'm gaining more for next year , Thanks a lot

[@MlungisiNkosi]

This is both grade 11 and 12

[@studytubewithzaian]

What's the difference between acid and conjugate acid sir?

[@MlungisiNkosi]

The acid is a substance that donates H+ ions. Conjugate acid-base pair is a pair that results when an acid and base have reacted with each other. Please watch the Acids and Bases video on the Lowry-Bronsted theory

[@siyabulelaseema7385]

Hope you are good sir.. so for tritation we only focus on reactants for the formula

[@MlungisiNkosi]

You've got it!!! Once the equation is balanced... You can forget about the products side. 😊

[@snakhofakude7231]

thank you sir for an amazing lesson... can you please do oxidation-reduction reaction🙏🙏

[@MlungisiNkosi]

Please check it. It’s already there under electrochemistry

[@snakhofakude7231]

@@MlungisiNkosi oh yeah I got it, thank you sir

[@quillsontech6744]

Thank You Sir 🙏✨

[@MlungisiNkosi]

You're most welcome

[@MamieTakataka]

Is this relevant to grade 11 ?

[@Kb_feb]

Chemistry has beeen violating me this year but thanks to your quick and easy to understand videos, I have more confidence going into my final chem exam. Please give me your account details so I can send you money as thanks when I become successful 🤣🤣👍🏽

[@MlungisiNkosi]

😂😂😂😂😂😂😂😂😂 I honestly don't mind. Please send me an email

[@rishongileshikwambani8215]

Sir for the volume. Can we still just convert them?

[@MlungisiNkosi]

Yes you may

[@ThobaneMotlala]

Ihave some difficult questions about titration..where could ireach out to yo

[@khalidbangash3680]

is this for IGCSE ??

[@MlungisiNkosi]

Not strictly so... But it is applicable.

[@tebz2517]

Can u do stochiometry?

[@MlungisiNkosi]

Please Check under Playlist... I have an entire Playlist on Stoichiometry. You can binge with popcorn on it

[@otlotlengsebelebele7946]

Sir,will it be correct if i convert the 30 cm^3 to dm^3 at the beginning ? or should i only convert everything at the end just like you did in the video?

[@MlungisiNkosi]

It would still work... Yes

[@Zulu223]

Can i ask why on right you have k² but on the left you K only

[@reabetsoesepolo5404]

New Subscriber, you're the best❤

[@MlungisiNkosi]

Welcome to the family Reabetsoe... I hope you enjoy all that I have to serve you with ❤️

[@anelisiwemzizana5385]

lovely sir

[@MlungisiNkosi]

Thank you

[@aestheticmeisie4604]

Wow thank you Sir🙏

[@MlungisiNkosi]

You’re welcome

[@asandandwandwe6618]

Sir do you do the zoom meetings?

[@MlungisiNkosi]

Yes I do... Please send me an email.

[@asandandwandwe6618]

Okay sir thanks I will

[@Papi_fm]

greetings sir, I have a question with regards to the normally asked question about conjugate acid/base pair. in an exam will we be required to give a conjugate acid/base in a reaction of KOH +H2SO4? did the sulfric acid donate the whole of H2 molecule?

[@MlungisiNkosi]

No it’s usually with water

[@weightlossmotivation5103]

On the first question if I convert cm3 to dm3 even if the 2 volumes are in the same unit will it be incorrect

[@MlungisiNkosi]

Not at all.. that would be fine too. As long as both are in the same units

[@UnraveledwithJoy]

i have a question about the na b. For the last question i chose the acid as na and it gave me the ratio of 1\2 which gave me a different answer how do you calculate so that the answer is the same?

[@MlungisiNkosi]

You must invert both the left and right side of the equation.

[@luuugirl4582]

Heyyy sir thank you so much for your videos😇🙌🏾. May you please do a video explaining the 8 mark calculations for titrations?

[@MlungisiNkosi]

Please check it under Acids and Bases...

[@tebz2517]

Is Lowry method useful?

[@MlungisiNkosi]

Yes it is very helpful... Just watch the next video on Acids and Bases you'll see

[@maokotokulogo866]

Dankie helpful 🎉

[@MapasekaMolebatsi]

Sir when we were doing the second calculation it's in 30cm/3 the volume of H2so4 s

[@evloghmenosxxx4035]

There’s this question in a past paper that I just can’t get. I’ve looked at the memo like 5 times . Is it possible you can make a video how to answer to ? It’s DBE/Feb-March 2015 paper 2 question 7 . The acids and bases one (7.3.3 and 7.3.4)

[@MlungisiNkosi]

I'll definitely look into it... Perhaps for revision. Thanks for the suggestion.

[@MlungisiNkosi]

I saw the question... It's very interesting.

[@jessicahlungwani2349]

Thank you sir

[@MlungisiNkosi]

You're most welcome Jessica

[@phumeleleluthando4338]

Sometimes I struggle to see the acidic reaction or basic plz teach how to observe that🙏

[@MlungisiNkosi]

I hope you eventually came right

[@nabilal_shatri8349]

Please I need more explanation on how knowing this is a conjugate acid or base, I need some solutions if there is solutions made, thank you bt I understood others except that

[@MlungisiNkosi]

Watch the next video in the playlist

[@leratomotimele]

Sorry, ISN'T 2KOH a base in the last equation, so it would be determine the volume of the base, in other words Vb and not VA.

[@MlungisiNkosi]

The "a" in the reaction doesn't necessarily stand for acid but if you want to strictly follow that principle, that's still fine.

[@justmich6573]

baie dankie meneer

[@MlungisiNkosi]

Thank you so much ❤️

[@ivy_j7494]

Thank u once again

[@MlungisiNkosi]

You're most welcome 😊

[@Gioviljoen]

sir isn't the potassium hydroxide a base

[@evloghmenosxxx4035]

Since H^+ is just a proton … can we call it deuterium ?

[@MlungisiNkosi]

Not exactly... Remember a deuterium has a neutron in the nucleus, whereas hydrogen doesn't.

[@nonhlemsibi665]

sir here you mixed up..arent we calculating the volume of the base which is the KOH i know we got the same answer but its a matter of confusion for other pupils

[@MlungisiNkosi]

Sorry it was not done intently...

[@See_yaN]

I think you made a mistake at the end we have the va(suphuric acid) what we don't have is the volume of Base(KOH)

[@MlungisiNkosi]

Thank you

[@fentsemotaung4489]

Im currently looking for a tutor Do u tutor?

[@MlungisiNkosi]

You can send me an email: [e-mail]. I'll plug you in...

[@mulikajobi9435]

Nice

[@MlungisiNkosi]

Thank you

[@mthokozisithandoh8272]

You made a mistake on number 2 Sir KOH is a base not an Acid and in H2SO4 is an acid and we want the Volume of a base not an Acid

[@MlungisiNkosi]

Thanks Mtho…

[@mokhesengben9315]

You the best bro🔥✌

[@MlungisiNkosi]

You're welcome

[@aint.no.regularr]

is it important to indicate the minus (-) on the base

[@MlungisiNkosi]

Which minus?

[@weightlossmotivation5103]

@@MlungisiNkosiI think he's talking about the valency. Sir can you please make a video about valency(on the periodic table and how to identify it) and oxidation numbers. Brief revision on Grade 11 work.

[@nonhlahlahappiness515]

Sir why did say 2 for acid and not base

[@MlungisiNkosi]

Please provide a time stamp for what you’re referring to…

[@wanjirukarago9308]

I can't believe am watching this 😂😂😂 this subject was a sleeping pill for me 🤦🏿‍♀️ skiving classes...in my final exam i wrote nothing 😂😂 just returned the exam paper as i was given.

[@oneyy6165]

Don't lose hope there's still paper 2

[@sinethembankosi6665]

You can't be serious 😲 But hey it happens . You go all out preparing but when its time to apply the work you juss feel like you're caught in some web. But hey... its not over yet🤗

[@MlungisiNkosi]

You will do well some day

[@suhailraja7797]

Your final exam you just ruined your future

[@Success2Glory]

lets ace this paper monday matrics of 2021 !

[@MlungisiNkosi]

Cava the confidence!!! I am really loving this...

[@TervinessThobela]

❤

[@MlungisiNkosi]

🙏🏾❤️

[@Youngballer739]

Would Calcium Hydrogen Phosphite (CaHPO3) be a base or acid? I'm confused.

[@MlungisiNkosi]

Your guess is as good as mine... I have no clue but the ionic form of it HPO3(2-) would be amphiprotic