Formic acid is used in the venom of some species of ants. What is the pH of a 0.2 M solution of formic acid (Ka = 1.78 × 10-4 M) ?
A) 8.90
B) 4.45
C) 3.75
D) 2.2 Ionization of Water, Weak Acids, and Weak Bases2
E) 1.72
Correct Answer:
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