a, \(V_{C_2H_5OH}=\dfrac{10.9}{100}=0,9\left(l\right)=900\left(ml\right)\)

\(\Rightarrow m_{C_2H_5OH}=900.0,8=720\left(g\right)\Rightarrow n_{C_2H_5OH}=\dfrac{720}{46}=\dfrac{360}{23}\left(mol\right)\)

PT: \(C_2H_5OH+O_2\underrightarrow{^{mengiam}}CH_3COOH+H_2O\)

Theo PT: \(n_{CH_3COOH\left(LT\right)}=n_{C_2H_5OH}=\dfrac{360}{23}\left(mol\right)\)

Mà: H = 92%

\(\Rightarrow n_{CH_3COOH\left(TT\right)}=\dfrac{360}{23}.92\%=14,4\left(mol\right)\)

\(\Rightarrow m_{CH_3COOH}=14,4.60=864\left(g\right)\)

b, \(m_{ddgiam}=\dfrac{864}{5\%}=17280\left(l\right)\)

a)

$C_2H_5OH + O_2 \xrightarrow{men\ giấm} CH_3COOH + H_2O$

V rượu =  57,5.12/100 = 6,9(lít) = 6900(cm3)

=> m rượu = 6900.0,8 = 5520(gam)

Theo PTHH :

n CH3COOH = n C2H5OH = 5520/46 = 120(mol)

m CH3COOH = 120.60 = 7200(gam)

b)

m dd giấm = 7200/4% = 180 000(gam)

\(V_r=57.5\cdot0.12=6.9\left(l\right)\)

\(m_{C_2H_5OH}=6.9\cdot0.8=5.52\left(g\right)\)

\(n_{C_2H_5OH}=\dfrac{5.52}{46}=0.12\left(mol\right)\)

\(n_{C_2H_5OH\left(pư\right)}=0.12\cdot92\%=0.1104\left(mol\right)\)

\(C_2H_5OH+O_2\underrightarrow{mg}CH_3COOH+H_2O\)

\(0.1104........................0.1104\)

\(m_{dd_{CH_3COOH}}=\dfrac{0.1104\cdot60}{4\%}=165.6\left(g\right)\)

a.\(V_{C_2H_5OH}=\dfrac{10.8}{100}=0,8ml\)

\(m_{C_2H_5OH}=0,8.0,8=1,6g\)

\(n_{C_2H_5OH}=\dfrac{1,6}{46}=0,034mol\)

\(C_2H_5OH+O_2\rightarrow\left(men.giấm\right)CH_3COOH+H_2O\)

 0,034                                            0,034                ( mol )

\(m_{CH_3COOH}=0,034.60.80\%=1,632g\)

b.\(m_{dd_{CH_3COOH}}=\dfrac{1,632}{5\%}=32,64g\)

\(a,C_2H_5OH+O_2\left(men.giấm\right)\rightarrow CH_3COOH+H_2O\\ V_{C_2H_5OH\left(ng.chất\right)}=\dfrac{2,875}{10}=0,2875\left(l\right)=287,5\left(ml\right)\\ m_{C_2H_5OH}=287,5.0,8=230\left(g\right)\\ n_{C_2H_5OH}=\dfrac{230}{46}=5\left(mol\right)\\ n_{CH_3COOH\left(LT\right)}=n_{C_2H_5OH}=5\left(mol\right)\\ n_{CH_3COOH\left(TT\right)}=5.80\%=4\left(mol\right)\\ m_{CH_3COOH\left(TT\right)}=4.60=240\left(g\right)\\ b,m_{dd.giấm}=\dfrac{240.100}{5}=4800\left(gam\right)\)

a. \(m_{C_2H_5OH}=\dfrac{10.0,8.8}{100}=0,64\left(kg\right)\)

\(n_{C_2H_5OH}=\dfrac{0,64}{46}=\dfrac{8}{575}\left(k-mol\right)\)

\(C_2H_5OH+O_2\rightarrow\left(t^o,men.giấm\right)CH_3COOH+H_2O\)

   \(\dfrac{8}{575}\)                                                     \(\dfrac{8}{575}\)          ( k-mol )

\(m_{CH_3COOH}=\dfrac{8}{575}.60.92\%=0,768\left(kg\right)=768\left(g\right)\)

b.\(m_{dd_{CH_3COOH}}=\dfrac{768.100}{4}=19200\left(g\right)\)

Bài 1:

PTHH: \(C_2H_5OH+O_2\xrightarrow[]{mengiấm}CH_3COOH+H_2O\)

Ta có: \(n_{C_2H_5OH}=\dfrac{115\cdot0,8}{46}=2\left(mol\right)=n_{CH_3COOH\left(lýthuyết\right)}\)

\(\Rightarrow m_{CH_3COOH\left(thực\right)}=2\cdot60\cdot90\%=108\left(g\right)\)

Bài 2:

PTHH: \(C_2H_5OH+CH_3COOH\xrightarrow[H_2SO_4\left(đ\right)]{t^o}CH_3COOC_2H_5+H_2O\)

Ta có: \(\left\{{}\begin{matrix}n_{CH_3COOH}=\dfrac{60}{60}=1\left(mol\right)\\n_{C_2H_5OH}=\dfrac{92}{46}=2\left(mol\right)\end{matrix}\right.\) \(\Rightarrow\) Rượu còn dư, Axit p/ứ hết

\(\Rightarrow n_{CH_3COOC_2H_5\left(lýthuyết\right)}=1\left(mol\right)\) \(\Rightarrow m_{CH_3COOC_2H_5\left(thực\right)}=1\cdot88\cdot80\%=70,4\left(g\right)\)

V C 2 H 5 OH = 50.4/100 = 2l

→  m C 2 H 5 OH  = 2.1000.0,8 = 1600g

Phương trình hóa học :

C 2 H 5 OH  +  O 2  →  CH 3 COOH +  H 2 O

46 gam     60 gam

1600 gam     x

x = 1600x60/46

Vì hiệu suất đạt 80% →  m CH 3 COOH  = 1600.60.80/(46.100) = 1669,6g

→ m giấm  = 1669,6/5 x 100 = 33392 (gam) = 33,392 kg