a, Ta có: \(n_{Na_2SO_3}=\dfrac{6,3}{126}=0,05\left(mol\right)\)
\(n_{Ca\left(OH\right)_2}=0,1.1=0,1\left(mol\right)\)
PT: \(Na_2SO_3+2HCl\rightarrow2NaCl+H_2O+SO_2\)
_____0,05__________________________0,05 (mol)
Xét tỉ lệ: \(\dfrac{n_{SO_2}}{n_{Ca\left(OH\right)_2}}=0,5< 1\)
⇒ Tạo muối CaSO3.
PT: \(SO_2+Ca\left(OH\right)_2\rightarrow CaSO_3+H_2O\)
____0,05_______________0,05 (mol)
b, \(V_{SO_2}=0,05.22,4=1,12\left(l\right)\)
c, \(m_{CaSO_3}=0,05.120=6\left(g\right)\)
Bạn tham khảo nhé!