A 0.22 M aqueous solution of the weak acid HA at 25.0 °C has a pH of 4.15.The value of K_a for HA is ________. A)7.1 × 10^-5 B)3.2 × 10^-4 C)2.2 × 10^-1 D)2.3 × 10^-8 E)3.2 × 10⁴

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The Answer of A 0.22 M aqueous solution of the weak acid HA at 25.0 °C has a pH of 4.15.The value of K_a for HA is ________. A)7.1 × 10^-5 B)3.2 × 10^-4 C)2.2 × 10^-1 D)2.3 × 10^-8 E)3.2 × 10⁴

A 022 M Aqueous Solution of the Weak Acid HA at at 25.0