Ta có: \(n_{HCl}=0,34\cdot2=0,64\left(mol\right)\) \(\Rightarrow m_{HCl}=0,68\cdot36,5=24,82\left(g\right)\)
Bảo toàn Hidro: \(n_{H_2}=\dfrac{1}{2}n_{HCl}=0,34\left(mol\right)\) \(\Rightarrow m_{H_2}=0,34\cdot2=0,68\left(g\right)\)
Bảo toàn khối lượng: \(m_{muối}=m_{KL}+m_{HCl}-m_{H_2}=32,14\left(g\right)\)
\(n_{HCl}=0,34.2=0,68\left(mol\right)\Rightarrow m_{HCl}=0,68.36,5=24,82\left(g\right)\)
PTHH: A + 2HCl → ACl2 + H2
PTHH: 2B + 6HCl → 2BCl3 + 3H2
Ta có: \(n_{HCl}=2n_{H_2}\Rightarrow n_{H_2}=\dfrac{n_{HCl}}{2}=\dfrac{0,68}{2}=0,34\left(mol\right)\)
Theo ĐLBTKL ta có:
\(m_{hh}+m_{HCl}=m_{muối}+m_{H_2}\)
\(\Rightarrow m_{muối}=m_{hh}+m_{HCl}-m_{H_2}\)
\(\Leftrightarrow m_{muối}=8+24,82-0,34.2=32,14\left(g\right)\)
