\(n_{H_2}=\dfrac{0,672}{22,4}=0,03\left(mol\right)\)
PTHH:
\(CH_3COOH+NaOH\rightarrow CH_3COONa+H_2O\)
0,04<------------0,04
\(CH_3COOH+Na\rightarrow CH_3COONa+\dfrac{1}{2}H_2\uparrow\)
0,04----------------------------------------->0,02
\(C_2H_5OH+Na\rightarrow C_2H_5ONa+\dfrac{1}{2}H_2\uparrow\)
0,005<--------------------------------0,01
\(\rightarrow m_{C_2H_5OH}=0,005.46=0,23\left(g\right)\)