When the phosphate buffer system buffers a strong acid, these molecules are formed:
A)a weak acid and a weak base
B)a weak base and a salt
C)a weak acid and a salt
D)a weak acid and water

Question

Quizplus · Accepted Answer

When the phosphate buffer system buffers a strong acid, it will release H+ ions, which will react with the HPO4^2- (dihydrogen phosphate ion) in the buffer system to form H2PO4- (monohydrogen phosphate ion), which is a weak acid. At the same time, the H+ ions will react with some of the buffer base, Na2HPO4 (disodium phosphate), to form NaH2PO4 (monosodium phosphate), which is a salt. Therefore, the molecules formed are a weak acid and a salt.

When the Phosphate Buffer System Buffers a Strong Acid, These