What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.010 M CH3CO2Na? Assume the volumes of the solution are additive and that Ka = 1.8 x 10-5 for CH3CO2H.

Question

What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.010 M CH3CO2Na? Assume the volumes of the solution are additive and that Ka = 1.8 x 10-5 for CH3CO2H.
4. How is this solved?

hugs · Accepted Answer

The correct answer is 3.74 if you are wondering

DrBob222 · Answer

Use the Henderson-Hasselbalch equation and substitute millimols for base and millimols for acid. Solve for pH.