Question

0.5 M HCl solution has ions Hg++, Cd++. Sr++, Fe++, Cu++. If \(\sf H_2S\) gas is passed through this solution, which ions get precipitated

Answer 1

@Rushwr any idea?

Answer 2

hmmm let me see

Answer 3

Since it has HCl the solution acidic !!!! I'm bad in this area but let me see

Answer 4

Cu will form CuS the black precipitate !

Answer 5

Answer is Cd+2, Hg+2 and Cu+2 btw

Answer 6

CdS is formed that's the yellow colour ppt !

Answer 7

HgS the black colour ppt

Answer 8

;-; I never did labs in my school days ;-;

Answer 9

;-; ;-; ;-;

Answer 10

neither did I . I kept on missing my lab periods thanks to all my other work. But we have to remember all these!

Answer 11

Can you refer me to some source where I can read all these..

Answer 12

Sr forms the carbonates in the group precipitation right?
And ion forms iron hydroxide.

Answer 13

I have no clue about this >_<

Answer 14

I'm not soo sure about the websites having them !!!!

Answer 15

Ok, where did you read these stuff?

Answer 16

by school note ^-^

Answer 17

;-; ;-;

Answer 18

Isn't this in chem book?

Answer 19

it might have but to be honest I haven't read a single book except for my school books !

Answer 20

And your school prefer which books?
NCERT?

Answer 21

I have no idea ! LOL..... If u don't mind I can give u the short note I made. But it's in brief school note is quite long. my short note has it in one page !

Answer 22

That would be great c;

Answer 23

btw, are you preparing for some sort of competitive examination?

Answer 24

I'll go home and send u !

Answer 25

Yeah I got my A/Ls next year!!!!

Answer 26

I haven't studied at all !!!!!

Answer 27

A/Ls ??
What's that?

Answer 28

Advanced level exams !

Answer 29

Are you from Sri Lanka?

Answer 30

Yep !!!

Answer 31

Oh, I see. I had an impression that you are from India. Anyways thanks a lot. I appreciate your effort c;

Answer 32

lol okai !!!!!! So how am i going to send u the short note ?

Answer 33

How wold you like to?

Answer 34

I will open up a question and then I'll tag u there!

Answer 35

Fine, you can do that or you can mail me if you like.

Answer 36

anythn convenient for u . And it's all handwritten ! I would probably take a photo and send u

Answer 37

Yeah, then mail me. I'll pm you my email and thanx once again. I owe you one c;

Answer 38

no problem !!! LOL

Answer 39

c:

Answer 40

@rushwr I found this. Seems very resourceful c:
https://www.dropbox.com/s/v5lqb83k0i8jcrf/Quantitative%20analysis%20of%20Cations.pdf?dl=0