Đổi:\(500ml\rightarrow0,5l\)
Ta có : \(n_{SO2}=0,1\left(mol\right)\)
\(PTHH:Ca\left(OH\right)2+SO2\rightarrow CaSO3+H2O\)
...................0,1.................0,1...........0,1..........................(mol)
\(\Rightarrow CM_{Ca\left(OH\right)3}=\frac{0,1}{0,5}=0,2\left(mol\right)\)
\(m_{CaSO3}=0,1.120=12\left(g\right)\)
n SO2=22,4/22,4=1(mol)
SO2+Ca(OH)2--->CaSO3+H2O
a) Theo pthh
n Ca(OH)2=n SO2=1(mol)
CMCa(OH)2= 1/0,5=2(M)
b) Theo pthh
n CaSO3=n CO2=1(mol)
m CaSO3=1.120=120(g)