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Formic Acid, Which Is a Component of Insect Venom, Has

Question 31

Multiple Choice

Formic acid, which is a component of insect venom, has a Ka = 1.8 × 10-4. What is the [H3O+] in a solution that is initially 0.10 M formic acid, HCOOH?


A) 4.2 × 10-3 M
B) 8.4 × 10-3 M
C) 1.8 × 10-4 M
D) 1.8 × 10-5 M
E) 1.8 × 10-6 M

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