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Direction of an Acid/Base Reaction

Posted: Sat Jan 19, 2019 6:33 pm
by Nathan Mariano 2G
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?

Re: Direction of an Acid/Base Reaction

Posted: Sat Jan 19, 2019 9:32 pm
by Vy Lu 2B
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.

Re: Direction of an Acid/Base Reaction

Posted: Sat Jan 19, 2019 11:26 pm
by Ethan Yi 1K
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