\(n_{\left(CH_3COO\right)_2Mg}=\dfrac{1,42}{142}=0,01\left(mol\right)\)
PT: \(2CH_3COOH+Mg\rightarrow\left(CH_3COO\right)_2Mg+H_2\)
__________0,02__________________0,01_____0,01 (mol)
a, \(C_{M_{CH_3COOH}}=\dfrac{0,02}{0,05}=0,4\left(M\right)\)
b, \(V_{H_2}=0,01.22,4=0,224\left(l\right)\)