The formula that connects Ka1, Ka2, and Ka3 is the relation;
Ka = Ka1 * Ka2 * Ka3
The Ka is defined as the acid dissociation constant of a solution. Now we have the triprotic acid called phosphoric acid. this implies that we have Ka1, Ka2, and Ka3.
Thus the formula that connects Ka1, Ka2, and Ka3 is the relation;
Ka = Ka1 * Ka2 * Ka3
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