Question

Calculate the mass per cent of different elements present in sodium sulphate (Na_{2}SO_{4}Na2​SO4​) .​

Answer 1

Answer:

here's is ur answer hope you understand✌

Explanation:

refer the attachment

Answer 2

• Molecular Formula : Na2SO4.

• Molecular Mass : 46 + 32 + 64 = 142 u.

Mass % of different elements -

1) Na. 46 / 142 × 100 = 32.3 %

2) S , 32 /142 × 100 = 22.53%

3) 64/142 ×100 = 45.07%