[ollieman]

I have no idea where to start with this question has anyone got a couple tips or pointers?


1. outline a procedure that would distinguish between solutions of copper (II) sulfate, sodium carbonate and silver nitrate .


Also could someone tell me is this is right

Galena is a mineral that contains lead. it has an empirical formula of PbS. If dilute nitric acid is poured onto a sample of galena.

Write a balanced chemical equation that would describe the effects that acetic acid would have on this oxide ?

PbS (s) + HNO3 (aq) ------->  pb(NO3)2 + H2S

Hope you can work that out with out super scripting:S

Hope someone can help me out

Cheers OLLiE

[Astrokel]

Hey!

1. Think of certain characteristics of reaction that would help you identify the anion/cation. The reaction could produce certain gases, or coloured ppt which maybe dissolved in excess reagent to give a colourless solution.

2. The equation is not balanced and it is wrong.

Write a balanced chemical equation that would describe the effects that acetic acid would have on this oxide ?

Which oxide?  NO?

[ollieman]

Write a balanced chemical equation that would describe the effects that acetic acid would have on this oxide ?

I copied the wrong part of the question

Write a balanced chemical equation that would describe the reaction that will occur?    ---i meant to say

What was i thinking is it more like

PbS (s) + 2HNO3 (aq) ------->  PbNO3 (aq) + HS (s)
             ^

Or have i lost the plot completely

[Astrokel]

hey!

PbS + HNO3 ----> Pb(NO3)2 + S + NO + H2O

not balanced

I think HNO3 is a pretty strong oxidizing agent to oxidize S- to S

[ollieman]

 

Can someone help me with the answer so i can work back from it and see how its meant to go?

[Astrokel]

Hey!

Do you know about the reaction between sodium carbonate and acid?

Do you know of any anion that could combine with Cu2+ or Ag+ to give a coloured precipitate?