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CHM130 Lesson 13 AYL
Question | Answer |
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Explain the importance of buffer solutions as it relates to the pH of person's blood. | If the pH value of blood remains in either alkaline or acidic form then it could prove harmful to a human being. It may even lead to death. |
What is the difference between a strong acid and weak acid? What is the difference between a strong base and weak base? Give examples of each type. | A strong acid is an acid which ionises almost completely when dissolved in water to produce a high concentration of hydrogen ions. A weak acid is an acid which partially ionises when dissolved in water to produce a low concentration of hydrogen ions. |
What is the H3O+ and OH- concentration of the following solutions? Urine (pH = 6.0) Blood (pH = 7.4) Bile (pH = 8.0) | Urine pOH = 1.00 x 10^-14/1.00 x 10^-6 = 1.00 x 10^-8 Blood pOH = 1.00 x 10^-14/3.98 x 10^-8 = 2.51 x 10^-7 Bile pOH = 1.00 x 10^-14/1.00 x 10^-8 = 1.00 x 10^-6 |
Cont..What is the H3O+ and OH- concentration of the following solutions? Urine (pH = 6.0) Blood (pH = 7.4) Bile (pH = 8.0) | Urine [H3O+] = 10^-6.0 = 1.00 x 10^-6 M H3O+ Blood [H3O+] = 10^-7.4 = 3.98 x 10^-8 M H3O+ Bile [H3O+] = 10^-8.0 = 1.00 x 10^-8 M H3O+ |