Chapter 14, Problem 67QAP

Indicate whether each of the following statements is true or false. If the statement is false, restate it to make it true.

(a) The formate ion (CHO₂^-) concentration in 0.10 M HCHO₂ is the same as in 0.10 M NaCHO₂.

(b) A buffer can be destroyed by adding too much strong acid.

(c) A buffer can be made up by any combination of weak acid and weak base.

(d) Because K_a for HCO₃^- is $4.7\times {10}^{-11}$, K_b for HCO₃^- is $2.1\times {10}^{-4}$.