A 010 M Aqueous Solution of a Weak Acid HA Has

question 121

Multiple Choice

A 0.10 M aqueous solution of a weak acid HA has a pH of 5.00.What is the value of K_a for HA?

• A)1.0 × 10^-8
• B)1.0 × 10^-6
• C)1.0 × 10^-7
• D)1.0 × 10^-5
• E)1.0 × 10^-9

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