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Question
define bronsted lowry acid and base? write conjugate acid and conjugate base of h2o?
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Solution
Dear student,
In Bronsted-Lowry theory, an acid is a substance that can release a proton (like in the Arrhenius theory) and a base is a substance that can accept a proton. A basic salt, such as Na+F-, generates OH- ions in water by taking protons from water itself (to make HF):
F-(aq) + H2O(l) > HF(aq) + OH-(aq)
When a Brønsted acid dissociates, it increases the concentration of hydrogen ions in the solution, [H+][H+]; conversely, Brønsted bases dissociate by taking a proton from the solvent (water) to generate [OH−].
Acid dissociation : HA ⇌ H+ + A-
​​​​​Upon analysing: - A Brønsted-Lowry acid is a proton (hydrogen ion) donor.
- A Brønsted-Lowry base is a proton (hydrogen ion) acceptor.
To find out the conjugate acid add one H+ to the given molecule and for conjugate base remove one H+ from given molecule.
SPECIES CONJUGATE ACID CONJUGATE BASE H2O H3O+ OH-
Regards
In Bronsted-Lowry theory, an acid is a substance that can release a proton (like in the Arrhenius theory) and a base is a substance that can accept a proton. A basic salt, such as Na+F-, generates OH- ions in water by taking protons from water itself (to make HF):
F-(aq) + H2O(l)
When a Brønsted acid dissociates, it increases the concentration of hydrogen ions in the solution, [H+][H+]; conversely, Brønsted bases dissociate by taking a proton from the solvent (water) to generate [OH−].
Acid dissociation : HA ⇌ H+ + A-
​​​​​Upon analysing:
- A Brønsted-Lowry acid is a proton (hydrogen ion) donor.
- A Brønsted-Lowry base is a proton (hydrogen ion) acceptor.
| SPECIES | CONJUGATE ACID | CONJUGATE BASE |
| H2O | H3O+ | OH- |
Regards
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