Questions 33 and 34 refer to aqueous solutions of formic acid, HCOOH, which has a Ka value of 1.9 × — Equilibrium Chemistry Question
Question
Questions 33 and 34 refer to aqueous solutions of formic acid, HCOOH, which has a Ka value of 1.9 × 10–4 at 25 °C.
How many moles of sodium formate must be added to 1.0 L of a 0.20 M formic acid solution to produce a pH of 4.00?
A.✓ Correct
0.38
B.
0.80
C.
1.9
D.
3.8
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