A Solution Is Prepared by Dissolving 0

question 150

Multiple Choice

A solution is prepared by dissolving 0.23 mol of formic acid and 0.27 mol of sodium formate in water sufficient to yield 1.00 L of solution.The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the ________ present in the buffer solution. The of formic acid is 1.8 × 10^-4.

• A) O
• C) formate
• D) formic acid
• E) This is a buffer solution: the pH does not change upon addition of acid or base.

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