“chloroethanoic acids”的概念、定义、翻译、参考文献-科学参考

chloroethanoic acids

Chemistry

Three acids in which hydrogen atoms in the methyl group of ethanoic acid have been replaced by chlorine atoms. They are: monochloroethanoic acid (CH₂ClCOOH); dichloroethanoic acid (CHCl₂COOH); trichloroethanoic acid (CCl₃COOH). The presence of chlorine atoms in the methyl group causes electron withdrawal from the COOH group and makes the chloroethanoic acids stronger acids than ethanoic acid itself. The K_a values (in moles dm⁻³ at 25°C) are
$\begin{array}{l} {CH}_{3} COOH {1.7 \times 10}^{- 5} \\ {CH}_{2} ClCOOH {1.3 \times 10}^{- 3} \end{array}$
$\begin{array}{l} {CHCl}_{2} COOH 5.0 \times 10^{- 2} \\ {CCl}_{3} COOH {2.3 \times 10}^{- 1} \end{array}$

单词	chloroethanoic acids
释义	chloroethanoic acids Chemistry Three acids in which hydrogen atoms in the methyl group of ethanoic acid have been replaced by chlorine atoms. They are: monochloroethanoic acid (CH₂ClCOOH); dichloroethanoic acid (CHCl₂COOH); trichloroethanoic acid (CCl₃COOH). The presence of chlorine atoms in the methyl group causes electron withdrawal from the COOH group and makes the chloroethanoic acids stronger acids than ethanoic acid itself. The K_a values (in moles dm⁻³ at 25°C) are $\begin{array}{l} {CH}_{3} COOH {1.7 \times 10}^{- 5} \\ {CH}_{2} ClCOOH {1.3 \times 10}^{- 3} \end{array}$ $\begin{array}{l} {CHCl}_{2} COOH 5.0 \times 10^{- 2} \\ {CCl}_{3} COOH {2.3 \times 10}^{- 1} \end{array}$
随便看	body body capacitance body cavity body-centred cubic body chamber body flap body fluid body mass index body plan body type body wave body work BOE Boehme, Jacob (1575–1624) boehmite Boeing Company Boer Boer Wars (1880–81) Boethius, Anicius Manlius Severinus (480–525) Boethius, Anicius Manlius Severinus (c.480–524 ad) Boethius’ thesis bog bog-burst Bogdanov, Alexandr Alexandrovich (1873–1928) Bogen structure