What is not a correct expression for the weak acid HA? A)K_a = [H₃O⁺][A^-]/[HA] B)pK_a = pH - log{[A^-]/[HA]} C)pK_a = logK_a D)pK_a = 14 - pK_b

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Quizplus · Accepted Answer

Option C is not a correct expression for the weak acid HA because pK is defined as the negative logarithm of the acid dissociation constant, while option C only includes the logarithm of K. The correct expression for pK is -log(K).

What Is Not a Correct Expression for the Weak Acid