What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.89 at 25°C? Ka for HC2H3O2 is 1.8 × 10-5.

What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.89 at 25°C? Ka for HC2H3O2 is 1.8 × 10-5.

What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.89 at 25°C? Ka for HC2H3O2 is 1.8 × 10-5.




a. 0.72
b. 1.4
c. 0.56
d. 2.0
e. 2.9




Answer: A