Write balanced chemical equations for the preparation of following salts:
1. A soluble sulphate (by action of an acid on a metal)
2. A soluble sulphate (by action of an acid on an insoluble metal oxide)
3. An insoluble sulphate (by the action of an acid on another salt)

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Solution

Dear Student
1.
zinc + sulfuric acid ==> zinc sulfate + hydrogen

Zn(s) + H2SO4(aq) ==> ZnSO4(aq) + H2(g)

2.
copper(II) oxide + sulfuric acid ==> copper(II) sulfate + water
CuO + H2SO4 ==> CuSO4 + H2O

CuO(s) + H2SO4(aq) ==> CuSO4(aq) + H2O(l)
3.
Barium sulfate (barium sulfate), a white precipitate, forms on mixing e.g. barium chloride solution and dilute sulfuric acid ...

barium chloride + sulfuric acid ==> barium sulfate + hydrochloric acid

BaCl₂(aq) + H₂SO₄(aq) ==> BaSO₄(s) + 2HCl(aq)

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Similar questions

Write the balanced equations for the preparation of the following salts in the laboratory :

(a) A soluble sulphate by the action of an acid on an insoluble base,

(b) An insoluble salt by the action of an acid on another salt,

(d) A soluble sulphate by the action of an acid on a metal.

The following is a list of methods for the preparation of salts.

A - direct combination of two elements.

B - reaction of a dilute acid with a metal.

C - reaction of a dilute acid with an insoluble base.

D - titration of a dilute acid with a solution of soluble base.

E - reaction of two solutions of salts to form a precipitate.

Choose from the above list A to E, the best method of preparing the following salts by giving a suitable equation in each case :

1. Anhydrous ferric chloride, 2. Lead chloride,

3. Sodium sulphate, 4. Copper sulphate.

X

Y

X

Y

X

N a O H

Y

N a O H

X

Y

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