Table of Contents
What happens when copper sulphate react with ammonia?
When an aqueous solution of ammonia is added to the solution of copper (II) sulphate, a pale blue coloured precipitate of copper hydroxide is formed . The copper reacts to form copper hydroxide.
What does copper sulfate and ammonia form?
The SO42- ion formed when CuSO4 dissolves in water is a weak Brnsted base that can pick up an H+ ion from water to form the hydrogen sulfate and hydroxide ions. The Cu2+ ion released into solution when CuSO4 dissolves reacts with ammonia to form a series of complex ions.
What is the balanced equation for CuSO4 5H2O?
(i) Balanced equation: CuSO4•5H2O → CuSO4 + 5 H2O One point is earned for the reactant.
What is the chemical formula for ammonium sulphate?
(NH₄)₂SO₄
Ammonium sulfate/Formula
What happens when cuso4 reacts with NH4OH?
reacts with NH4OH to give deep blue complex of: A. Copper Ammonium sulphate. With addition of an excess amount of ammonium hydroxide to copper sulphate solution gives a deep blue solution .
What is the formula of copper sulfate?
CuSO4
Copper(II) sulfate/Formula
What type of reaction is CuSO4 * 5H2O?
Type of Reactions Lab Answers
| Reaction | Balanced Chemical Reaction | Type of Chemical Reaction |
|---|---|---|
| CuSO4(s) + H2O(l) → CuSO4*5H2O(s) | CuSO4(s) + 5H2O(l) → CuSO4*5H2O(s) | Synthesis |
| Ca(s) + S(s) → CaS(s) | Ca(s) + S(s) → CaS(s) | Synthesis |
| Mg(s) + O2(g) → MgO(s) | 2Mg(s) + O2(g) → 2MgO(s) | Synthesis |
What is the balanced equation for calcium and water?
Ca+2H2O→Ca(OH)2+H2↑
What happens when ammonia is added to copper sulphate?
When a weak ammonia solution is added to copper sulphate, initially you will get a light blue copper (ii) hydroxide formed. This is a deep blue soluble complex copper ammonia ion: [Cu (H2O)6]2+ (aq) + 4 NH3 (aq) <==> [Cu (NH3)4 (H2O)2]2+ (aq) + 4 H2O (l) Read about it: What would happen if you touched francium?
What is the formula for copper ion in ammonia solution?
The copper ion in the aqueous solution of exists predominantly as [Cu (H 2 O) 6] 2+. This complex ion imparts a characteristic pale blue color to the solution. Since ammonia is a weak base, when it is added, hydroxide ion forms: NH 3 (aq) + H 2 O (l) <==> NH 4+ (aq) + OH – (aq); pK b = 9.25 (1)
What happens when ammonia is added to Cu(OH)2?
Although the Cu (OH)2 dissolves as more ammonia is added, the ammonia does not actually react with the Cu (OH)2; it reacts with the Cu2+ that are in solution and this forces the Cu (OH)2 equilibrium to shift in the direction of its ions (by Le Chatelier’s Principle).
What happens when zinc is added to copper sulphate solution?
Zinc is more reactive than copper. So, here , on adding zinc to CuSO4 solution, zinc displaces copper from copper sulphate & forms zinc sulphate solution. This is indicated by colour change from blue to colourless. CuSO4 solution has a blue colour while ZnSO4 solution is colourless. Zn (s) + CuSO4 (aq) -> Cu (s) + ZnSO4 (aq).