Đổi 700ml = 0,7 lít; 112ml = 0,112 lít
PT: SO2 + Ba(OH)2 ---> BaSO3 + H2O
Ta có: \(\dfrac{n_{Ba\left(OH\right)_2}}{0,7}=0,01\Rightarrow n_{Ba\left(OH\right)_2}=0,007\left(mol\right)\)
Ta có: \(\dfrac{0,112}{22,4}=0,005\left(mol\right)\)
Ta thấy: \(\dfrac{0,007}{1}>\dfrac{0,005}{1}\)
=> Ba(OH)2 dư
Theo PT: \(n_{BaSO_3}=n_{SO_2}=0,005\left(mol\right)\)
=> \(m_{BaSO_3}=0,005.217=1,085\left(g\right)\)
=> m = 1,085(g)