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Electronegativity
- The strength of these acids are only determined by electronegativity. The more electronegative the elements are within the molecule, the stronger the acid. The increased polarity of the molecule weakens the O-H bond and allows the proton to dissociate more.
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Feb 11, 2021 · The key to understanding this trend is to consider the hypothetical conjugate base in each case: the more stable (weaker) the conjugate base, the stronger the acid. Look at where the negative charge ends up in each conjugate base.
- Common Acids and Bases
Acidity of Carboxylic Acids. The pK a 's of some typical...
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- Strong Acids and Strong Bases
Strong Acids. Strong acids are acids that are completely or...
- Common Acids and Bases
Aug 14, 2020 · Inductive effects and charge delocalization significantly influence the acidity or basicity of a compound. The acid–base strength of a molecule depends strongly on its structure. The weaker the A–H or B–H+ bond, the more likely it is to dissociate to form an H + ion.
The key to understanding this trend is to consider the hypothetical conjugate base in each case: the more stable (weaker) the conjugate base, the stronger the acid. Look at where the negative charge ends up in each conjugate base.
Jul 12, 2023 · Strong Acids. Strong acids are acids that are completely or nearly 100% ionized in their solutions; Table \(\PageIndex{1}\) includes some common strong acids. Hence, the ionization in Equation \(\ref{gen ion}\) for a strong acid HA can be represented with a single arrow: \[\ce{HA(aq) + H2O(l) \rightarrow H3O^{+}(aq) + A^{-}(aq)} \label{gen ion}\]
A strong acid is an acid that dissociates according to the reaction HA + S ↽ − − ⇀ SH + + A − {\displaystyle {\ce {HA + S <=> SH+ + A-}}} where S represents a solvent molecule, such as a molecule of water or dimethyl sulfoxide (DMSO), to such an extent that the concentration of the undissociated species HA {\displaystyle {\ce {HA ...
Jul 3, 2019 · Strong electrolytes are completely dissociated into ions in water. The acid or base molecule does not exist in aqueous solution, only ions. Weak electrolytes are incompletely dissociated. Here are definitions and examples of strong and weak acids and strong and weak bases.
In other words, a strong acid is a molecule that is higher in energy (less stable) than its conjugate base. This instability relative to its conjugate base drives its reactivity in an acid-base reaction, making it a strong acid.
