Suppose a 1

question 16

Multiple Choice

Suppose a 1.0 L solution containing 0.20 moles of propanoic acid is titrated with 0.40 M KOH.The pH at the equivalence point is 8.99.What is the K_a of propanoic acid?

• A)1.4 *10 ^-5
• B)2.1 * 10 ^-5
• C)5.1 *10 ^-9
• D)7.2*10 ^-9
• E)Insufficient information is provided to determine K_a.

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