12 Acids, Bases, pH, and Buffers Report Sheet-Acids, Bases, pH, and Buffers C. Effect of Buffers on pH Effect of adding 0.1 M HCI Solution RO 0.1 M NICE High pH buffer Low pH buffer CA Initial pl S Solution HO 0.1 M NaCl High pH buffer Low pH buffer 4 12 Effect of adding 0.1 M NaOH C.A Initial pl 5 H C2 pil after 5 drops HCL 4 12 C.5 pH after 3 drops NaOH 10 8 pH after 10 drops HCI pH after 10 drops C NaOH 10 11 2 Questions and Problems Q.5 Which solution(s) showed the greatest change in pH? Why? 13 2 Q.6 Which solutions(s) showed little or no change in pH? Why? CAJ pH change 1 Q.7 Is a buffer supposed to keep the pH of a solution at 7 (neutral)? 3 1 pH change 5 7 2 Buffer? Buffer? Q.8 Normally, the pH of the human body is fixed in a very narrow range between 7.35 and 7.45. A patient with an acidotic blood pH of 7.3 may be treated with an alkali such as sodium bicarbonate. Why would this treatment raise the pH of the blood?