Compute the solution of the following problem
Problem- You have 50 mL of a buffer solution that is 0.15 M in HA and 0.25 M in A.
Part 1- Calculate the pH of the solution after you add 100 mL of 0.01 M HCl to the solution. The pKa of HA is 4.75.
I want help to evaluate the pH of the solution.