In: Chemistry
1) The percent ionization of a certain weak acid is 3.14%. If the starting concentration of the acid is 0.55 M, what is the Ka of the acid?
2) What is the pH of a buffer made by mixing 575 mL of 0.150 M potassium acetate with 450 mL of 0.225 M acetic acid (Ka = 1.8 × 10^–5 )?