Question

Calculate the mass percentage of oxygen in H2SO4,
where S is 32.65% , H is 2.04%.

Answer 1

Answer:

Molecular mass of H

2

SO

4

=2+32+(16×4)=98g

Molar mass of S in 1 mole of H

2

SO

4

=32g

Therefore % of S in H

2

SO

4

=

98

32

×100=32.65%.