(a) What is the pH of 100. mL of a buffer solution where the concentration of acetic acid is 0.50 M and the concentration of sodium acetate is 1.0 M? Ka = 1.8 x 10-5 for acetic acid.
(b) If 100. mL of water is added to the 100. mL of buffer solution described in Part a, what is the pH of the resultant solution? Explain.