1.
\(m_{CuSO_4}=n_{CuSO_4}.M_{CuSO_4}=0,25.160=40\left(g\right)\)
\(n_{CO_2}=\frac{V_{CO_2}}{22,4}=\frac{5,6}{22,4}=0,25\left(mol\right)\)
\(m_{CO_2}=n_{CO_2}.M_{CO_2}=0,25.44=11\left(g\right)\)
2.
a) \(PTHH:Fe+2HCl\rightarrow FeCl_2+H_2\)
b)
\(n_{H_2}=\frac{V_{H_2}}{22,4}=\frac{3,36}{22,4}=0,15\left(mol\right)\)
Theo PTHH, ta có:
\(n_{H_2}=2n_{HCl}=2.0,15=0,3\left(mol\right)\)
\(m_{HCl}=n_{HCl}.M_{HCl}=0,3.36,5=10,95\left(g\right)\)