What is the symbol used to represent the acid dissociation constant?

Ka

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To which type of acid (strong or weak) does the acid dissociation constant (Ka) apply?

Weak acids

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What is the expression for the acid dissociation constant (Ka) of a weak acid (HA)?

Ka =[HA][H+][A]

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What are the units of the acid dissociation constant?

mol dm-3

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What is the formula to calculate pKa from Ka?

pKa = -log10 Ka

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What is the relationship between the strength of a weak acid and its Ka value?

The stronger the weak acid, the larger the Ka value.


Conversely, the weaker the weak acid, the smaller the Ka value.

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What is the relationship between the strength of a weak acid and its pKa value?

The stronger the weak acid, the smaller the pKa value.


Conversely, the weaker the weak acid, the larger the pKa value.

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What is the formula to calculate Ka from pKa?

Ka = 10-pKa

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