PT: \(2Na+Cl_2\underrightarrow{t^o}2NaCl\)
Ta có: \(n_{NaCl}=\dfrac{4,68}{58,5}=0,08\left(mol\right)\)
Theo PT: \(\left\{{}\begin{matrix}n_{Na\left(LT\right)}=n_{NaCl}=0,08\left(mol\right)\\n_{Cl_2\left(LT\right)}=\dfrac{1}{2}n_{NaCl}=0,04\left(mol\right)\end{matrix}\right.\)
\(\Rightarrow\left\{{}\begin{matrix}m_{Na\left(LT\right)}=0,08.23=1,84\left(g\right)\\V_{Cl_2\left(LT\right)}=0,04.22,4=0,896\left(l\right)\end{matrix}\right.\)
Mà: H% = 80%
\(\Rightarrow\left\{{}\begin{matrix}m_{Na\left(TT\right)}=\dfrac{1,84}{80\%}=2,3\left(g\right)\\V_{Cl_2\left(TT\right)}=\dfrac{0,896}{80\%}=1,12\left(l\right)\end{matrix}\right.\)
Bạn tham khảo nhé!