Question

What is the percent of SO2 in H2SO4?
Help Please

Answer 1

The percent of SO₂ in H₂SO₄ : 65.3%

Further explanation

Proust states the Comparative Law that compounds are formed from elements with the same Mass Comparison so that compounds have a fixed composition of elements

%Mass A in AxBy =

`\tt (x.Ar~A)/(MW~A_xB_y)* 100\%`

For SO₂ in H₂SO₄ :

MW SO₂ = 32 + 2.16=64 g/mol

MW H₂SO₄ =2.1+32+4.16=98 g/mol

The percent of SO₂ :

`\tt (64)/(98)* 100\%=65.3\%`