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aVrượu=46/0,8=57,5ml
V nước=100/1=100ml
Vhỗn hợp=157,5ml
Đr=57,5/157,5.100=36,5 độ
1/ 1/ (-C6H10O5-)n + nH2O => (H2SO4đ,to) nC6H12O6
C6H12O6 => (men rượu,to) 2CO2 + C2H5OH
C2H5OH + O2 => (men giấm) CH3COOH + H2O
CH3COOH + C2H5OH => (H2SO4đ,to) <pứ hai chiều> CH3COOC2H5 + H2O
2/ C2H4 + H2O => (140oC,H2SO4đ) C2H5OH
C2H5OH + O2 => (men giấm) CH3COOH + H2O
CH3COOH + C2H5OH => (H2SO4đ,t0) <pứ hai chiều> CH3COOC2H5 + H2O
CH3COOC2H5 + NaOH => (to) CH3COONa + C2H5OH
câu1
1/
(C6H10O5)n+ nH2O\(\xrightarrow[to]{axit}\) nC6H12O6
C6H12O6\(\xrightarrow[30-35\cdot C]{enzim}\) 2C2H5OH+ 2CO2\(\uparrow\)
C2H5OH+ O2\(\xrightarrow[giấm]{men}\) CH3COOH+ H2O
C2H5OH+ CH3COOH\(\xrightarrow[to]{H2SO4đặc}\) CH3COOC2H5+ H2O
2/
C2H4+ H2O\(\xrightarrow[]{axit}\) C2H5OH
C2H5OH+ O2\(\xrightarrow[giấm]{men}\) CH3COOH+ H2O
C2H5OH+ CH3COOH\(\xrightarrow[to]{H2SO4đặc}\) CH3COOC2H5+ H2O
CH3COOC2H5+ H2O\(\xrightarrow[]{axit}\) C2H5OH+ CH3COOH
câu 2
a/
có: Vrượu= \(\frac{500.60}{100}\)= 300( ml)
b/
có: mrượu= V. D= 300. 0,8= 240( g)
\(a,C_2H_5OH+O_2\left(men.giấm\right)\rightarrow CH_3COOH+H_2O\\ V_{C_2H_5OH\left(ng.chất\right)}=\dfrac{2,875}{10}=0,2875\left(l\right)=287,5\left(ml\right)\\ m_{C_2H_5OH}=287,5.0,8=230\left(g\right)\\ n_{C_2H_5OH}=\dfrac{230}{46}=5\left(mol\right)\\ n_{CH_3COOH\left(LT\right)}=n_{C_2H_5OH}=5\left(mol\right)\\ n_{CH_3COOH\left(TT\right)}=5.80\%=4\left(mol\right)\\ m_{CH_3COOH\left(TT\right)}=4.60=240\left(g\right)\\ b,m_{dd.giấm}=\dfrac{240.100}{5}=4800\left(gam\right)\)
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.\(m_{dd_{CH_3COOH}}=\dfrac{768.100}{4}=19200\left(g\right)\)
\(a,V_{rượu\left(ng.chất\right)}=\dfrac{500.80}{100}=400\left(ml\right)\\ b,V_{rượu\left(ng.chất\right)}=\dfrac{700.30}{100}=210\left(ml\right)\\ c,V_{rượu\left(ng.chất\right)}=\dfrac{400.90}{100}=360\left(ml\right)\\ d,V_{rượu\left(ng.chất\right)}=\dfrac{300.35}{100}=105\left(ml\right)\)
a. \(V_{dd}=92+108=200\left(ml\right)\)
\(Đ_{rượu}=\dfrac{92}{200}.100=46^o\)
b.\(V_{dd\left(15^o\right)}=\dfrac{92.100}{11,5}=800\left(ml\right)\)
\(V_{H_2O\left(thêm\right)}=800-200=600\left(ml\right)\)
c.\(V_{rượu\left(23^o\right)}=\dfrac{100.23}{100}=23\left(ml\right)\)
\(V_{rượu\left(sau\right)}=23+92=115\left(ml\right)\)
\(V_{dd\left(sau\right)}=800+100=900\left(ml\right)\)
\(Đ_{rượu}=\dfrac{115}{900}.100=12,78^o\)
1, a, Độ rượu là: \(\dfrac{20}{20+380}.100=5^o\)
b, Độ rượu là: \(\dfrac{0,8}{0,8+1,2}.100=40^o\)
2,
\(a,V_{CH_3OH}=\dfrac{2.10}{100}=0,2\left(l\right)\\ b,V_{CH_3OH}=\dfrac{450.30}{100}=135\left(ml\right)\\ c,V_{CH_3OH}=\dfrac{30.18}{100}=5,4\left(l\right)\)