\(CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(n_{HCl}=0,2.2=0,4mol\)
\(\Rightarrow n_{CuO}=0,2mol\)
\(\Rightarrow m_{CuO}=0,2.80=16g\)
PTHH: \(CuO+2HCl\rightarrow CuCl_2+H_2O\)
Làm gộp luôn cho nhanh
Ta có: \(n_{HCl}=0,2\cdot2=0,4\left(mol\right)\) \(\Rightarrow n_{CuO}=n_{CuCl_2}=0,2mol\)
\(\Rightarrow\left\{{}\begin{matrix}m_{CuO}=0,2\cdot80=16\left(g\right)\\C_{M_{CuCl_2}}=\dfrac{0,2}{0,2}=1\left(M\right)\end{matrix}\right.\)