Question

how to calculate the mass percent of Na2SO4​

Answer 1

Answer:

Explanation:

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%

Answer 2

Answer:

Total mass of na2so4 =46+32+64=142

So mass composition of na is=

46/142=32.3

For s=

32/142=22.5

For o=

64/142=45.07