nSO2 = 0.056/22.4=0.0025 mol
Ca(OH)2 + SO2 --> CaSO3 + H2O
0.0025_____0.0025___0.0025
VddCa(OH)2 = 0.0025/0.5 = 0.005 (l)
mCaSO3 = 0.0025*120 = 0.3 g
c)
nCaSO3 = 24/120 = 0.2 mol
CaSO3 + SO2 + H2O --> Ca(HSO3)2
0.2______0.2
VSO2 = 0.2*22.4=4.48 l