Hello professor can u help me to solve that:if 38 ml of 2M H3PO3 is used to titrate 150ml of NaOH what is the molarity of the acid?

nice exercise again! one small thing, the information given shows 35.23 mL NaOH at first but when calculating this changes to 35.24 mL NaOH. No big deal tho, the answer doesn't change cuz of it :P

Thank you for the well explained clip.

Thank you so much. I was searching everywhere

Thank you so much. This video is very helpful.

Thanks, Prof. Dave!

thank you so much. Really helpful

Thanks man! But I think there is easier method We can use M1V1=M2V2 and we don't have to convert mL to L because it cancels each other in the process, and you will get the same answer 0.250M x 35.23mL the whole divided by 50mL and you will get 0.17615 to be precise

@padhle_chinmay

Жыл бұрын

Great method to solve quickly, thanks man!

@whatisknown2569

Жыл бұрын

@@padhle_chinmay Welcome

@mattmao47

Жыл бұрын

This works on monoprotic acids, or reactions that are 1 to 1 mole. It gets janky once you move into diprotic or triprotics.

@whatisknown2569

Жыл бұрын

@@mattmao47 Maybe, but glad u told us, thanks

@geetee12345

Жыл бұрын

I was thinking the same thing, Wow what a roundabout way to do it where Titration Formula works just fine. This is a GREAT reminder of the mole relationship in all this, I would use this in an Honors class, IMO ...and it does factor in if you have a diprotic acid like sulfuric ;)

Thank you so much! I had to learn titration myself today and I was so confused!

@pluza4311

Жыл бұрын

no you didnt

@klumzyskiwi

Жыл бұрын

@@pluza4311 i will kiss you on the mouth

@berwick3414

8 ай бұрын

@@pluza4311😂😂😂

Sir can you please do reaction Mechanism of Organic chemistry and how do we convert carboxylic acids to esters...when we are doing reaction Mechanism between Ethanoic acid +NaOH as an example so that NaOH doesn't act as a base.

@ProfessorDaveExplains

5 жыл бұрын

fischer esterification

This helped so much, thank you!

i need to calculate percentage error for the titration of KHP vs NaOH howvere i dont know the theoretical value !!! someone help me out here professor dave

is it true that mol acid will equal mol base even if one is strong and the other is weak?

Damn! His students must love him!

Literally saved me tonight. Thank you so much!

@odio_stationofficial3420

7 ай бұрын

Same bro, 1 year after you, I also got saved the last night🌙 before practical exam..😅😅

Great video :)

Thank you professor Dave, I love you

Thank you so much

Thank you so much 🙏🙏🙏

You can also just multiply 0.25 by 35.24 and dividing it all by 50 giving you the same answer. I forgot what it was called but skips unit conversion.

@steppingintostem

Жыл бұрын

The formula for dilution yes. M1V1=M2V2

May you please help me with the balance chemical equation between potassium dichromate and oxalis acid. Thank you

@maganonashilongo

11 ай бұрын

I mean oxalic acid not oxalis 😢

how do i get the concentration of the base tho

good

That was good 🙏❤️

muchos gracias

Nice

can we use M1V1=M2V2 to solve this?

@Js12135

3 жыл бұрын

yes M1V1=M2V2 works and is arguably more straight forward than the method he explained but I guess its a case of personal preference which one you use

@ShivamGupta-zv5ly

Жыл бұрын

Where are you from?

Yes we can V1...known volume C1...unknown conc. V2...known volume C2 ..known conc. V1c1= v2 c2 50×c1=35.2×0.250 C1= 0.177

thx

life saver

go ahead

I’m confused on where you got 0.0500 l at the end

@shairahcortez

2 жыл бұрын

The question says 50ml so he converted it into litres = 0.05L

Professor i have something question that is part of acid base or not?

m1v1=m2v2 wipes

ily

@ShivamGupta-zv5ly

Жыл бұрын

Where are you from?

@ShivamGupta-zv5ly

Жыл бұрын

In which class do you study?

Hi professor....

Hindi po kami bata

Personally I understood nothing whether it be from my chemistry teacher my classmates or KZread

not the elevator music-

Just a comment..You made that very simple calculation a complicated one...since both units are same(ml not mass) we can easily use M1V1=M2V2 equation. I try to make chemistry as simple as possible for my students..this will confuse them.

@ProfessorDaveExplains

3 жыл бұрын

This is not a dilution, this is a titration.

@johnsubba7288

3 жыл бұрын

I am sorry, but it is same for the titration...The units converted to liters and further...Unless there is difference in the number of molecules reacting on the reactant's side..since it is A+B - C+D reaction the M1V1=M2V2 will work..But if the reaction are like 2A+B ---- A+2B - product..then the different method is used similar to yours...M1V1/M2V2=2/1 .. considering 2 the moles reactant of A and M1V1 for A. The same for B... Well there are 2-3 ways to come to the same conclusion..I just commented on making it easy...But I admit that you make great videos...👍👍✌️

@JemilaJNunes

3 жыл бұрын

@@johnsubba7288 You are absolutely right, I teach my students this method as well. When the moles of reactant are not equal (as in the example you showed), you can use the following modified equation: NBCAVA = NACBVB where NA and NB are the stoichiometric coefficients of the acid and base respectively that appear in the BALANCED chemical reaction. CA is concentration of acid, VA is volume of acid. Using this formula, you never have to guess about the mole ratios, and bonus, you don't have to convert mL to L.

@johnsubba7288

3 жыл бұрын

@@JemilaJNunes exactly my point..you hit the bull's eye on what I was trying to say..Thanks, Jemila.

@caitlingee642

3 жыл бұрын

maybe he was trying to show how to do other problems that don't have a 1 to 1 mole ratio?

Tetration

Haha very easy

jesus?

Not helpful

@josiee28

3 ай бұрын

shut up

@emmetthollinger

Ай бұрын

I thought it was pretty helpful