Suppose a 1 $\times$ 10^-5
B)2 $\times$ 10^-5
C)5 $\times$ 10^-9
D)7 $\times$ 10^-9
E)Insufficient Information Is Provided to Determine K_b

question 177

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 \(\times\) 10^-5
• B)2.1 \(\times\) 10^-5
• C)5.1 \(\times\) 10^-9
• D)7.2 \(\times\)10^-9
• E)Insufficient information is provided to determine K_b.

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