How do you write Ka?

Answer 1

You mean the #"acid dissociation constant",K_a#?

#HA(aq) + H_2O(l) rightleftharpoons H_3O^+ + A^-#
Given that #[H_2O]# is effectively a constant, we can write the equilibrium expression in this way:
#K_a=([H_3O^+][A^-])/([HA])#
And thus for strong acids, where the equilibrium as written lies strongly to the right, #K_a# is large. #K_a# is small for weaker acids where the equilibrium lies to the left.
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Answer 2

Ka is written as the equilibrium constant for the dissociation of an acid. It is represented as:

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

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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