Xà phòng hóa hoàn toàn 8,8 gam etyl axetat bằng 20...

B

- Hướng dẫn giải

\({n_{C{H_3}{\text{COO}}{{\text{C}}_2}{H_5}}} = 0,1mol,{n_{NaOH}} = 0,2mol \to NaOHdu\)

\({n_{{C_2}{H_5}OH}} = {n_{C{H_3}{\text{COO}}{{\text{C}}_2}{H_5}}} = 0,1mol\)

\(BTKL:{m_{C{H_3}{\text{COO}}{{\text{C}}_2}{H_5}}} + {m_{NaOH}} = {m_{{C_2}{H_5}OH}} + m \to m = 12,2g\)