a/ PTHH:
\(2CH_3COOH+Zn\rightarrow\left(CH_3COO\right)_2Zn+H_2\uparrow\)
0,9 <---- 0,45 <----- 0,45 <---- 0,45
\(n_{H_2}=\dfrac{10,08}{22,4}=0,45\left(mol\right)\)
\(m_{Zn}=0,45.65=29,25\left(g\right)\)
b/ \(C_{MddCH_3COOH}=\dfrac{0,9}{0,2}=4,5\left(M\right)\)
c/ \(CH_3COOH+NaOH\rightarrow CH_3COONa+H_2O\)
0,9 ----> 0,9 ----> 0,9
\(V_{ddNaOH}=\dfrac{0,9}{2}=0,45\left(l\right)\)
\(V_{ddCH_3COONa}=0,2+0,45=0,65\left(l\right)\)
\(C_{MddCH_3COONa}=\dfrac{0,9}{0,65}=1,385\left(M\right)\)