a, nNaOH = 0,2.1 = 0,2 (mol)
PTHH: CH3COOH + NaOH ---> CH3COONa + H2O
0,2<---------0,2
=> \(\left\{{}\begin{matrix}m_{CH_3COOH}=0,2.60=12\left(g\right)\\m_{C_2H_5OH}=25,8-12=13,8\left(g\right)\end{matrix}\right.\)
=> \(\left\{{}\begin{matrix}\%m_{CH_3COOH}=\dfrac{12}{25,8}.100\%=46,5\%\\\%m_{C_2H_5OH}=100\%-46,5\%=53,5\%\end{matrix}\right.\)
b, \(\left\{{}\begin{matrix}n_{CH_3COOH}=\dfrac{6,45}{25,8}.0,2=0,05\left(mol\right)\\n_{C_2H_5OH}=\dfrac{6,45-0,05.60}{46}=0,075\left(mol\right)\end{matrix}\right.\)
PTHH: \(CH_3COOH+C_2H_5OH\xrightarrow[t^o]{H_2SO_{4\left(đ\right)}}CH_3COOC_2H_5+H_2O\)
LTL: 0,05 < 0,075 => Rượu dư
=> \(n_{CH_3COOC_2H_5\left(LT\right)}=n_{CH_3COOH}=0,05\left(mol\right)\\ \)
=> \(m_{CH_3COOC_2H_5\left(TT\right)}=0,05.88.80\%=3,52\left(g\right)\)
a.\(n_{NaOH}=0,2.1=0,2mol\)
\(CH_3COOH+NaOH\rightarrow CH_3COONa+H_2O\)
0,2 0,2 ( mol )
\(\rightarrow\left\{{}\begin{matrix}\%m_{CH_3COOH}=\dfrac{0,2.60}{25,8}=46,51\%\\\%m_{C_2H_5OH}=100\%-46,51\%=53,49\%\end{matrix}\right.\)
b.Bạn check lại đề giúp mình:((