Related questions

Question

If the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is 3.11, which of the following is TRUE? A) [HCHO2] << [NaCHO2] B) [HCHO2] > [NaCHO2] C) [HCHO2] < [NaCHO2] D) [HCHO2] = [NaCHO2] E) It is not possible to make a buffer of this pH from HCHO2 and NaCHO2.