PT \(CH_3COOH+NaHCO_3\rightarrow CH_3COONa+H_2O+CO_2\uparrow\)
a, \(m_{CH_3COOH}=\frac{6\times150}{100}=9\left(g\right)\)\(\Rightarrow n_{CH_3COOH}=\frac{9}{60}=0,15\left(mol\right)\)
Theo PT \(n_{NaHCO_3}=n_{CH_3COOH}=0,15\left(mol\right)\Rightarrow m_{NaHCO_3}=0,15\times84=12,6\left(g\right)\)\(\Rightarrow m_{ddNaHCO_3}=\frac{12,6\times100}{8,4}=150\left(g\right)\)
b, Theo PT \(n_{CH_3COONa}=n_{CH_3COOH}=0,15\left(mol\right)\)
\(\Rightarrow m_{CH_3COONa}=0,15\times82=12,3\left(g\right)\)
Có \(m_{ddsaupu}=150+150=300\left(g\right)\)
\(\Rightarrow C\%=\frac{12,3}{300}\times100=4,1\%\)