C. Effect of Buffers on pH C.1 Effect of adding acid Solution 1. Initial PH H₂O 0.1 M NaCl High pH buffer Low pH buffer

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C Effect Of Buffers On Ph C 1 Effect Of Adding Acid Solution 1 Initial Ph H O 0 1 M Nacl High Ph Buffer Low Ph Buffer 1 (49.44 KiB) Viewed 41 times

C. Effect of Buffers on pH C.1 Effect of adding acid Solution 1. Initial PH H₂O 0.1 M NaCl High pH buffer Low pH buffer C.2 Effect of adding base Solution 1. Initial pH H₂O 0.1 M NaCl, High pH buffer 6.2 10.0 4.0 Low pH buffer 6.5 C₁.2 16.0 4.0 2. pH after 5 drops of HCI 1.3 9.6 3.8 2. pH after 5 drops of NaOH 12.7 12.6 10.2 4.3 3. pH after 10 drops of HCI 1.1 9.4 3.7 3. pH after 10 drops of NaOH 13.0 13.0 10.3 4.4 4. pH change 5.4 NO 5.1 NO yes 0.6 10.3 yes 4. pH change 6.5 10.3 10.4 Questions and Problems Q4 Which solution(s) showed the greatest change in pH? Why? 5. Buffer Q5 Which solutions(s) showed little or no change in pH? Why? yes or no? 5. Buffer yes or no? NG Ma Yes Yes Q6 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 hydrogen carbonate. Why would this treatment raise the pH of the blood?