\(Đặt:n_{C_2H_5OH}=a\left(mol\right);n_{CH_3COOH}=b\left(mol\right)\left(a,b>0\right)\\ a,PTHH:C_2H_5OH+Na\rightarrow C_2H_5ONa+\dfrac{1}{2}H_2\\ CH_3COOH+Na\rightarrow CH_3COONa+\dfrac{1}{2}H_2\\ n_{H_2\left(tổng\right)}=\dfrac{2,24}{22,4}=0,1\left(mol\right)\\ b,Ta.lập.hpt:\left\{{}\begin{matrix}46a+60b=10,6\\0,5a+0,5b=0,1\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}a=0,1\\b=0,1\end{matrix}\right.\\ \%m_{C_2H_5OH}=\dfrac{0,1.46}{10,6}.100\approx43,396\%\\\Rightarrow\%m_{CH_3COOH}\approx100\%-43,396\%\approx56,604\%\)

n_H2 = 0,2 mol

Gọi x, y lần lượt là số mol của C₂H₅OH, CH₃COOH ( x,y > 0 )

2C₂H₅OH + 2Na \(\rightarrow\) 2C₂H₅ONa + H₂

x...................x................x................0,5x

2CH₃COOH + 2Na \(\rightarrow\) 2CH₃COONa + H₂

y.........................y.................y................0,5y

Ta có hệ

\(\left\{{}\begin{matrix}46x+60y=21,2\\0,5x+0,5y=0,2\end{matrix}\right.\)

\(\Rightarrow\) \(\left\{{}\begin{matrix}x=0,2\\y=0,2\end{matrix}\right.\)

\(\Rightarrow\) %_C2H5OH = \(\dfrac{0,2.46.100\%}{21,2}\)\(\approx\) 43,4%

\(\Rightarrow\) %_CH3COOH = \(\dfrac{0,2.60.100\%}{21,2}\) \(\approx\) 56,6%

CH3COOH + NaHCO3 => CH3COONa + CO2 + H2O

nH2 = V/22.4 = 4.48/22.4 = 0.2 (mol)

Theo phương trình suy ra: nCH3COOH = 0.2 (mol)

mCH3COOH = n.M = 0.2 x 60 = 12 (g)

mC2H5OH = 30.4 - 12 = 18.4 (g)

%CH3COOH = 39.47%, %C2H5OH = 60.57%

nCO2= 0.2 mol

CH3COOH + NaHCO3 --> CH3COONa + CO2 + H2O

0.2_________________________________0.2

mCH3COOH= 12g

mC2H5OH= 18.4g

%CH3COOH= 39.47%

%C2H5OH= 60.53%

2NA+2CH3COOH-->2CH3COONA+H2

2NA+2C2H5OH--->2C2H5ONA+H2

ta có n H2=4,48/22,4=0,2 mol

gọi x là số mol của CH3COOH

y là số mol của C2H5OH

theo pt ta có hệ sau

\(\left\{{}\begin{matrix}\dfrac{1}{2}x+\dfrac{1}{2}y=0,2\\60x+46y=21,2\end{matrix}\right.\)\(\Leftrightarrow\)\(\left\{{}\begin{matrix}x=0,2\\y=0,2\end{matrix}\right.\)

suy ra mc2h5oh=0,2*46=9,2 g suy ra %C2H5OH=43.4%

%CH3COOH=56,6%

a.b.\(n_{CO_2}=\dfrac{5,6}{22,4}=0,25mol\)

\(2CH_3COOH+Na_2CO_3\rightarrow2CH_3COONa+CO_2+H_2O\)

       0,5                                                              0,25               ( mol )

\(m_{CH_3COOH}=0,5.60=30g\)

\(\%m_{CH_3COOH}=\dfrac{30}{45}.100=66,67\%\)

\(\%m_{C_2H_5OH}=100\%-66,67\%=33,33\%\)

c.\(m_{NaOH}=50.20\%=10g\)

\(n_{NaOH}=\dfrac{10}{40}=0,25mol\)

\(2NaOH+CO_2\rightarrow Na_2CO_3+H_2O\)

 \(\dfrac{0,25}{2}\)   <    \(\dfrac{0,25}{1}\)                                ( mol )

 0,25                           0,125                    ( mol )

\(m_{Na_2CO_3}=0,125.106=13,25g\)

a) 

2CH₃COOH + Na₂CO₃ --> 2CH₃COONa + CO₂ + H₂O

b) \(n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)

PTHH: 2CH₃COOH + Na₂CO₃ --> 2CH₃COONa + CO₂ + H₂O

                  0,5<-----------------------------------0,25

=> m_CH3COOH = 0,5.60 = 30 (g)

=> m_C2H5OH = 45 - 30 = 15 (g)

c) \(n_{NaOH}=\dfrac{50.20\%}{40}=0,25\left(mol\right)\)

Xét tỉ lệ: \(\dfrac{n_{NaOH}}{n_{CO_2}}=\dfrac{0,25}{0,25}=1\) => Tạo muối NaHCO₃

PTHH: NaOH + CO₂ --> NaHCO₃

              0,25-------------->0,25

=> m_NaHCO3 = 0,25.84 = 21 (g)

c2h5oh+na2co3-

2ch3cooh+ na2co3-> 2ch3coona+h2o+co2

nCO2=2,24/22,4=0,1

nCh3cooh=2nCO2 =2*0,1=0,2mol

mCH3COOH=0,2*60=12g

mc2h5oh=30,4-12=18,4

%mCH3COOH=12/30,4*100=39,5%

%mC2H5OH=18,4/30,4*100=60,5%

2CH3COOH + Na2CO3 --> 2CH3COONa + CO2 + H2O

nCO2= 2.24/22.4=0.1 (mol)

Từ PTHH :

nCH3COOH= 0.2 (mol)

mCH3COOH= 0.2*60=12g

mC2H5OH= 30.4-12=18.4g

%mCH3COOH= 12/30.48*100%=39.47%

%mC2H5OH= 100-39.47=60.53%