Ответ:
дано
m(рраCH3CH2CH2COOH) = 142 г
W(CH3CH2CH2COOH) = 65%
η(CH3CH2CH2COOC2H5) = 65%
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m пр (CH3CH2CH2COOC2H5) - ?
m(CH3CH2CH2COOH) = 142 * 65% / 100% = 92.3 g
CH3CH2CH2COOH+C2H5OH-->CH3CH2CH2COOC2H5+H2O
M(CH3CH2CH2COOH) = 88 g/mol
n(CH3CH2CH2COOH) = m/M = 92.3 / 88 = 1.05 mol
n(CH3CH2CH2COOH) = n(CH3CH2CH2COOC2H5) = 1.05 mol
M(CH3CH2CH2COOC2H5) = 116 g/mol
m теор (CH3CH2CH2COOC2H5) = n*M = n*M = 1.05*116 = 121.8 g
mпр.(CH3CH2CH2COOC2H5) = 121.8 *65% / 100% = 79.17 g
ответ 79.17 г
Объяснение:
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Answers & Comments
Ответ:
дано
m(рраCH3CH2CH2COOH) = 142 г
W(CH3CH2CH2COOH) = 65%
η(CH3CH2CH2COOC2H5) = 65%
------------------------------------------
m пр (CH3CH2CH2COOC2H5) - ?
m(CH3CH2CH2COOH) = 142 * 65% / 100% = 92.3 g
CH3CH2CH2COOH+C2H5OH-->CH3CH2CH2COOC2H5+H2O
M(CH3CH2CH2COOH) = 88 g/mol
n(CH3CH2CH2COOH) = m/M = 92.3 / 88 = 1.05 mol
n(CH3CH2CH2COOH) = n(CH3CH2CH2COOC2H5) = 1.05 mol
M(CH3CH2CH2COOC2H5) = 116 g/mol
m теор (CH3CH2CH2COOC2H5) = n*M = n*M = 1.05*116 = 121.8 g
mпр.(CH3CH2CH2COOC2H5) = 121.8 *65% / 100% = 79.17 g
ответ 79.17 г
Объяснение: