Question

Để hấp thụ tôi đa V (ml) khí SO2 (đktc) cần dùng 300 ml đ Ca(OH)2 0,01 M . Tính V

Answer 1

Answer 2

nCa(OH)2= 0.01*0.3=0.003 mol

Ca(OH)2 + SO2 --> CaSO3 + H2O

0.003______0.003

VSO2= 0.003*22.4=0.672l= 672ml

Answer 3

TH1 : Chỉ tạo ra muối trung hòa

nCa(OH)2= 0.01*0.3=0.003 mol

Ca(OH)2 + SO2 --> CaSO3 + H2O

0.003_____0.003

VSO2= 0.003*22.4=0.672l=672 ml

TH2: Tạo ra cả 2 muối

Ca(OH)2 + SO2 --> CaSO3 + H2O

0.003_____0.003____0.003

CaSO3 + SO2 + H2O --> Ca(HSO3)2

0.003____0.003

nSO2= 0.003+0.003=0.006 mol

VSO2= 0.006*22.4=0.1344l=134.4ml