Direction of an Acid/Base Reaction

Acidity
Basicity
The Conjugate Seesaw

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Nathan Mariano 2G
Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

Direction of an Acid/Base Reaction

Postby Nathan Mariano 2G » Sat Jan 19, 2019 6:33 pm

How can we determine whether an acid/base reaction will favor the forward reaction or the reverse reaction? Why do acids favor forward reactions, while bases favor reverse reactions?

Vy Lu 2B
Posts: 59
Joined: Fri Sep 28, 2018 12:24 am

Re: Direction of an Acid/Base Reaction

Postby Vy Lu 2B » Sat Jan 19, 2019 9:32 pm

We use the equilibrium constant K to compare it with the current state of the reaction (reaction quotient Q); the reaction will favor the forward direction if Q<K and it will favor the reverse direction if Q>K.
Acids do not specifically only favor the forward and bases do not specifically favor the reverse; each acid and base is unique, depending on its equilibrium constant.

Ethan Yi 1K
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

Re: Direction of an Acid/Base Reaction

Postby Ethan Yi 1K » Sat Jan 19, 2019 11:26 pm

for both Q and K, the products are in the numerator and thus if Q>K, there is an excess of products, and the reaction will proceed in the reverse reaction. likewise, the opposite is true of Q<K


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