Question

Sulfura de hidrogen arde in exces de oxigen formind oxid de sulf4 si apa . Calculati volumul de SO2 care se formeaza la arderea a : 4 moli H2S

Answer 1

2 H2S + 3 O2 = 2 SO2 + 2 H2O
n H2S = 4 mol

2 mol H2S formeaza 2 mol SO2
4 mol H2S formeaza x mol SO2
x= 4 mol SO2 => v SO2 = 22,4 l/ mol x 4 mol =  89,6 l SO2 in cn