What Is the [H₃O⁺] in a Buffer That Consists of 0.30

question 41

Multiple Choice

What is the [H₃O⁺] in a buffer that consists of 0.30 M HCOOH and 0.20 M HCOONa? For HCOOH, K_a = 1.7 × 10^-4

• A) 1.1 × 10^-4 M
• B) 2.6 × 10^-4 M
• C) 4.3 × 10^-4 M
• D) 6.7 × 10^-5 M
• E) none of the above

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