7. A 0.20M sodium chlorobenzoate (NaC7H4ClO2) solution has a pH of 8.65. Calculate the pH of a 0.20M Chlorobenzoic acid (HC7H4ClO2) solution. Answers (1) (a) 1.8109; (b) 1.4103; (c) 5.6104; (d) 7.21010; (e) Strong Acid-Weak Base or Weak Acid - Strong Base; (f) treated as stoichiometry; (2) (a) 4.82; (b) 6.94; (3) 1.8%, higher, higher; (4) 3.58,0.0042M; (5) (a) 1.66; (b) iron(II) nitrate will have a higher pH; (6) (a) 3.79; (b) 2.58; (7) 2.35