Question

How much copper can be obtained from 100 g of copper sulphate (CuSO₄)?

Answer 1

1 mole of CuSO₄ contains 1 mole of copper.

Molar mass of CuSO₄ = (63.5) + (32.00) + 4(16.00)

= 63.5 + 32.00 + 64.00

= 159.5 g

159.5 g of CuSO₄ contains 63.5 g of copper.

⇒ 100 g of CuSO₄ will contain `(63.5xx100  "g")/159.5` of copper.

∴ Amount of copper that can be obtained from 100 g CuSO₄

`=(63.5xx100)/159.5`

= 39.81 g