Question

If the pKa of HCOOH is 3.74 and the pH of an HCOOH/HCOONa buffer sôlution is 3.89 , which of the following is TRUE?
A) [HCOOH]<[HCOONa]
B) [HCOOH]=[HCOONa]
C) [HCOOH]>[HCOONa]
D) [HCOOH]>>[HCOONa]
E) [HCOOH]≪[HCOONa]