The weak acid HA has a Ka of 4.5×10−6. If a 1.4 M solution of the...

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Question

The weak acid HA has a Ka of 4.5×10−6. If a 1.4 M solution of the acid is prepared, what is the pH of the solution? The equilibrium expression is:

HA(aq)+H2O(l)⇋H3O+(aq)+A−(aq)

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