Question

How many millilitres of 0.5 M H₂SO₄ are needed to dissolve 0.5 g of copper(II) carbonate ?

Answer 1

'.' For 123.5 g of Cu(II) carbonate 98 g of H₂SO₄ are required.

.'. 0.5 g of Cu(II) carbonate

= 98 x 0.5/123.5 g of H₂SO₄ are required.

Weight of required H₂SO₄ = 0.39676 g

Weight = mol.wt x molarity x volume in mL/1000

= 0.39676 = 98 x 0.5 x V/1000

Volume of H₂SO₄ solution = 8.097 mL