Ta có: 56nFe + 24nMg = 13,6 (1)
PT: \(Fe+2CH_3COOH\rightarrow\left(CH_3COO\right)_2Fe+H_2\)
\(Mg+2CH_3COOH\rightarrow\left(CH_3COO\right)_2Mg+H_2\)
Theo PT: \(n_{CH_3COOH}=2n_{Fe}+2n_{Mg}=\dfrac{100.36\%}{60}=0,6\left(mol\right)\left(2\right)\)
Từ (1) và (2) \(\Rightarrow\left\{{}\begin{matrix}n_{Fe}=0,2\left(mol\right)\\n_{Mg}=0,1\left(mol\right)\end{matrix}\right.\)
a, \(n_{H_2}=n_{Fe}+n_{Mg}=0,3\left(mol\right)\)
\(\Rightarrow V_{H_2}=0,3.22,4=6,72\left(l\right)\)
b, \(n_{\left(CH_3COO\right)_2Fe}=n_{Fe}=0,2\left(mol\right)\Rightarrow m_{\left(CH_3COO\right)_2Fe}=0,2.174=34,8\left(g\right)\)
\(n_{\left(CH_3COO\right)_2Mg}=n_{Mg}=0,1\left(mol\right)\Rightarrow m_{\left(CH_3COO\right)_2Mg}=0,1.142=14,2\left(g\right)\)
