Question

Calculate the pH of the solution formed when 40.0 mL of 0.100 M NaOH is added to 50.0 mL of 0.100 M CH₃COOH (Ka = 1.8 x 10⁻⁵)?

Answer 1

To calculate the pH of the solution formed when NaOH is added to CH₃COOH, we can use the acid dissociation constant Ka. We can also use the equation pH = -log([H+]) to calculate the pH after adding different volumes of NaOH to the solution.

Step-by-step explanation:

The pH of a solution can be calculated using the following equation:

pH = -log[H+]

For the given question, we are dealing with a weak acid and a strong base. The initial pH can be calculated using the formula:

pH = -log(Ka)

where Ka is the acid dissociation constant for the weak acid. After adding different volumes of NaOH, the pH can be calculated using the equation:

pH = -log([H+])

where [H+] is the concentration of H+ ions in the solution.