Question

Calculate the mass percentage composition of copper in copper sulphate (Cu=64,S=32,O=16)​

Answer 1

Molecular mass of CUSO4=160u

Mass of cu =64u

Percentage =64/160×100=40/

Answer 2

Answer:Calculate the % of copper in copper sulphate, CuSO4

1- Calculate the % of copper in copper sulphate, CuSO4

2-   Relative atomic masses: Cu = 64, S = 32 and O = 16.

3-   relative formula mass = 64 + 32 + (4x16) = 160.

4-  only one copper atom of relative atomic mass 64.

5 -  % Cu = 100 x 64 / 160.

6 -   = 40% copper by mass in the compound