Calculate the pH of the resulting solution when 3.00 mL of the 3.00 M acetic acid is diluted to make a 250.0 mL solution.

Answer 1

3 ml x 3.00 M = 250 ml * x M

x = 0.036 M HAc

Ka = 1.8x10^-5 /0.036-x

solve for x using the quadratic formula. This gives the [H⁺]

Take the negative log of that value to obtain the pH