What Is the [H₃O⁺] of an Aqueous Solution Measured to Be

question 91

Multiple Choice

What is the [H₃O⁺] of an aqueous solution measured to be 0.20 M in sodium acetate and 0.40 M in acetic acid? (K_a = 1.8 × 10^-5)

• A)1.8 × 10^-5 M
• B)9.0 × 10^-6 M
• C)3.6 × 10^-5 M
• D)7.2 × 10^-5 M
• E)4.7 M

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