Study Guide - Chapter 4


Study Guide - Chapter 4

1. Describe liquid water on a molecular scale. How does this description account for the physical properties of water?

2. What is a hydrogen bond, and how does its energy compare with a covalent bond?

3. What is meant by the hydrophobic force? How is it responsible for the action of a detergent? How is a detergent micelle similar to the structure of a protein?

4. What is a colligative property? Name 3 colligative properties.

5. Explain the terms osmosis, isotonic, hypertonic, and hypotonic. Use these words in an explanation of a dialysis experiment.

6. In lab we did an experiment where we filled a dialysis tube with a solution of salt and protein, and then dialyzed it against deionized water. What do you think would have happened to the sample if we had rolled it, and placed it in dry corn starch? (Corn starch is a high molecular weight polymer of glucose)

7. Given the [H + ] of a solution, calculate the [OH ] of the solution, and vice versa.

8. Given the pH of a solution, calculate the pOH of the solution and vice versa.

9. Be able to do buffer problems using the Henderson-Hasselbalch equation.

Given [HA] and [A ] calculate pH

Given total acid ([HA]+[A ]) and pH calculate actual amounts of [HA] and [A ]

Remember your titration curve. When does pH = pK?