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

question 95

Multiple Choice

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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