Select the statement that best describes a solution containing 0.10 M NH3 and 0.20 M NH4CI?

Question

A) The solution will have a greater buffer capacity for added acid than added base.

B.) The solution will have a greater buffer capacity for added base than added acid.

C.) The solution will not buffer for added acids or bases.

D.) The solution will buffer for added acids or bases equally.

Answer 1

B.) The solution will have a greater buffer capacity for added base than added acid.

The reason being that the concentration of the conjugate acid (NH₄⁺) is twice that of the base (NH3) and so will be able to "handle" more added base than acid.