Question

What do you observe when ammonium hydroxide is added to copper sulphate solution first a little, then in excess.

Answer 1

Explanation:

When ammonium hydroxide is added in the solution of copper sulfate drop-wise, a pale blue precipitate of copper hydroxide is obtained. The equation for this follows: When ammonium hydroxide is added in excess, the precipitate dissolves and gives a deep blue solution of tetraammine copper (II) sulfate.

Answer 2

When ammonium hydroxide is added in the solution of copper sulfate drop-wise, a pale blue precipitate of copper hydroxide is obtained. The equation for this follows: When ammonium hydroxide is added in excess, the precipitate dissolves and gives a deep blue solution of tetraammine copper (II) sulfate.