2024 WAEC Chemistry Practical | Qualitative Analysis 2 | Live Session (For TEACHERS)

This video is a teachers' guide that shows step-by-step demonstration of how to perform the qualitative analysis of the 2024 WAEC Chemistry Practical.

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[adetorostephen]

Great job science chef! On the matter of brown ring or conc H2SO4, I think WAEC can take another turn and that is:
PORTION OF FILTRATE + CONC/DIL H2SO4 + GENTLE HEAT.
OBSERVATION: A brown fume was produced, (you can test with litmus paper).
INFERENCE: The gas is NO2(g) from NO3-

[charlesoffiong]

Great job, the Science Chef! Keep doing what you know how to do best!

[EloikeAnthony]

Video is very good and is very helpful, the observation is no problem buh out of all, thank you very much for this video

[maryjaneenyosiobi]

Thanks so much sir🙏, I wish you could also explain how to make statements of the analysis, all the same 👍👍

[barbaraokonkwo]

Please what is the name of the first salt you added water to it to obtain. White Ppt

[fay_lin]

Thank you so much sir. This is best ive ever watched, may the lord continually bless you. Amen🙏🏾

[olaleyeoluwafemioladimeji]

Weldone great scientist. Next time don't forget to use the overall. I think safety first. Good you used the hand glove

[AliceOko-pgns]

Great job the science chief, thanks sir you are wonderful 👍

[JulieNwaobi-boql]

That's great. Can you show the titration part

[allaboutdereksochima]

Nice job! This really helped me. Sure I'm gonna score high in chemistry practicals.

[opec]

From the list of specimen, conc H2SO4 and freshly prepared FeSO4 were not required. Are we sure we would be expecting the brown ring test

[fausattoyin]

U really did a good job sir
Thank you and God bless all your efforts

[captainmarvel]

But the specimen for thus year is barium chloride and silve trioxonitrate (v)

[OmoikeBlessing]

I don't think the brown ring test would be necessary.You are doing a great job though.

[richardenaohwo]

Gently! Gently!! Gently!!! Wow, this is beautiful.. Wonderful 😂😂😂

[henrylawrence]

It's better to be well over prepared than not well prepared. Please don't assume that there will be no brown ring test simply because the instructions didn't ask you to provide the requirements.

[rotimibabatope]

The brown ring is not forming when I did the brown ring test.. what could be the cause Sir?

[lemuelchibuikejames]

Good job, sir. Is that Iron (II) sulphate heptahydrate?

[buckymac]

Thank you sir, but is the pbcl2 going to be soluble in excess hcl and are we using concentrated or dilute hcl

[igbobennethchinedu]

What will be the inference after adding HNO3 to PbCO3