Chemistry Questionare 1?

Question

A dry sample of copper (ll) sulphate crystals was prepared as described below. An excess of copper (ll) carbonate was added to dilute sulphuric acid and a gas was given off. When the reaction had stopped, the mixture was filtered. The filtrate was heated in an evaporating dish for a few minutes and then allowed to cool. The crystals which formed were filtered off and dried with filter paper.

a) Why was an excess of copper (ll) carbonate used?

b) What was the gas produced when copper (ll) carbonate was added to dilute sulphuric?

c) What observation would show that the reaction had stopped?

d) Why was the mixture filtered after the reaction had stopped?

e) Why was the filtrate heated?

f) What other copper compound could you use to react with dilute sulphuric acid to form copper (ll) sulphate?

g) Write a balanced chemical equation including state symbols for the reaction between copper (ll) carbonate and sulphuric acid?

Answer 1

I have sent the answers to your email. It is a challenging question.

Answer 2

This qn seem familiar but i nid to noe wher is the source of the qn