Determine the numbers of mL of the Na For solution you should add 20 mL of the 1.10M H For to make your buffer? Formic acid, HF or, has a ka of1.8*10-4. You need to prepare a buffer having a pH of 3.40 from H For and 0.10 HFor and a 1.10 M Na For solution.
When 5 drops of 0.10 M NaOH were added to 20 mL of the buffer in the previous question, the pH went from 3.39 to 3.42. Write down an ionic equation to explain why the pH did not go up much higher.