a)2KClO₃→2KCl + 3O₂
2 moli clorat.........3 moli oxigen
4 moli.....................x x=4*3/2=6 moli oxigen
O₂+S →SO₂
1 mol oxigen.......1 mol dioxid de sulf
6 moli oxigen..........y y=6 moli dioxid de sulf
2SO₂+O₂→2SO₃
2 moli dioxid de sulf...............2 moli trioxid de sulf
6 moli.....................................z z= 6 moli SO₃
SO₃+H₂O→H₂SO₄
1 mol SO₃................1 mol H₂SO₄
6 moli SO₃................t moli H₂SO₄ t=6 moli H₂SO₄
M H₂SO₄ = 2+32+16*4=98 g/mol
n=m/M
m=n*M=6*98=588 g H₂SO₄
b)c=md*100/ms
ms=md+m H₂O=588+100=688
c=588*100/688=85.46%
