Question

Choose the response that includes all the following combinations that are buffer solutions and none that are not buffer solutions. All components are present in 0.10 M concentrations.

I. HCl and NH3

II. HIO3 and KOH

III. HNO3 and NH4NO3

IV. H2SO4 and Na2SO4

V. HNO2 and LiNO2

VI. CH3NH2 and CH3NH3NO3

A) I, III, and VI

B) I, II, V, and VI

C) II, III, and IV

D) III and IV

E) II and VI

Answer 1