Constantes d'ionisation des acides faibles
- Page ID
- 193999
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)| Constantes d'ionisation des acides faibles | |||
|---|---|---|---|
| Acide | Formule | K a à 25 °C | Structure de Lewis |
| acétique | CH 3 CO 2 H | 1,8 × 10 −5 |  |
| arsenic | H 3 SO 4 | 5,5 × 10 −3 |  |
 |
1,7 × 10 −7 | ||
 |
5,1 × 10 −12 | ||
| arsénieux | H 3 SO 3 | 5,1 × 10 −10 |  |
| borique | H 3 BOÎTE 3 | 5,4 × 10 −10 |  |
| carbonique | H 2 CO 3 | 4,3 × 10 −7 |  |
 |
4,7 × 10 −11 | ||
| cyanique | HÔ CNO | 2 × 10 −4 |  |
| formique | CHO 2 H | 1,8 × 10 −4 |  |
| hydrazoïque | H N 3 | 2,5 × 10 −5 |  |
| cyanhydrique | IL PEUT | 4,9 × 10 −10 | |
| hydrofluorique | H F | 3,5 × 10 −4 | |
| peroxyde d'hydrogène | H 2 OU 2 | 2,4 × 10 −12 |  |
| séléniure d'hydrogène | H 2 Sec | 1,29 × 10 −4 | |
| Salut, je vois... | 1 × 10 −12 | ||
| ion sulfate d'hydrogène |  |
1,2 × 10 −2 |  |
| sulfure d'hydrogène | H 2 S | 8,9 × 10 −8 | |
| H S — | 1,0 × 10 −19 | ||
| tellurure d'hydrogène | H 2 Thé | 2,3 × 10 −3 | |
| Salut Te — | 1,6 × 10 −11 | ||
| hypobrome | H BrO | 2,8 × 10 −9 | |
| hypochloreux | H ClO | 2,9 × 10 −8 | |
| nitreux | H N° 2 | 4,6 × 10 −4 |  |
| oxalique | H 2 X 2 O 4 | 6,0 × 10 −2 |  |
 |
6,1 × 10 −5 | ||
| phosphorique | H 3 PO 4 | 7,5 × 10 −3 |  |
 |
6,2 × 10 −8 | ||
 |
4,2 × 10 −13 | ||
| phosphoreux | H 3 OU 3 | 5 × 10 −2 |  |
 |
2,0 × 10 −7 | ||
| sulfureux | H 2 SO 3 | 1,6 × 10 −2 |  |
 |
6,4 × 10 −8 | ||