Question

脱硫：MgO+ H2O→Mg(OH)2 Mg(OH)2+ SO2→MgSO3 + H2O MgSO3 + H2O+ SO

Answer 1

① n(SO2)=1.992×10/233+16.82/104=0.247mol

n(O2)=（0.897×10/233）÷2=0.0192mol

② n (MgSO4)= 0.897×10/233= 0.0384mol

m(MgSO3)=550g×0.652/(100+0.652)=3.563g

n(MgSO3)=3.563/104=0.0343mol

由Mg(HSO3)2产生的n(BaSO4)= 1.992×10/233-0.0384-0.0352=0.0127mol

则：n[Mg(HSO3)2 ]=0.012/2=0.00635mol