A Solution Is Prepared by Adding 100 ML of 0

Multiple Choice

A solution is prepared by adding 100 mL of 0.2 M hydrochloric acid to 100 mL of 0.4 M sodium formate. Is this a buffer solution, and if so, what is its pH?

A) It is a buffer, pH > pK _a of formic acid.
B) It is a buffer, pH < pK _a of formic acid.
C) It is a buffer, pH = pK _a of formic acid.
D) It is a buffer, pH = pK _b of sodium formate.
E) Since hydrochloric acid is a strong acid, this is not a buffer.