Mixtures, Concentrations, and Diffusion

Mixtures, Concentrations, and Diffusion Objectives

1. Distinguish between the different types of mixtures

2. Calculate the concentration of a solution, including dilutions

3. Perform calculations related to dosage amounts in medicine

4. Discuss osmosis and dialysis and how they relate to cell function

Objective 1. Distinguish between the different types of mixtures

Tasks:

• • Read Section 8.1 in your text

Upon successful completion of this objective, you should be able to:

• • Compare and contrast the different types of mixtures

Objective 2. Calculate the concentration of a solution, including dilutions

Tasks:

• • Read Sections 8.2 and 8.5 in your text

  • Watch the course video Concentrations

Upon successful completion of this objective, you should be able to:

• • Calculate and express solution concentration using units of:

    • mass/volume

    • % mass/volume

    • molarity

    • equivalents/L

    • parts per million

    • parts per billion

  • Calculate the concentration of a diluted solution

Objective 3. Perform calculations related to dosage amounts in medicine

Tasks:

• • Read Sections 8.4 in your text

Upon successful completion of this objective, you should be able to:

• • • Use dimensional analysis to calculate appropriate dosage amounts 

    • Calculate IV flow rates

Objective 4. Discuss osmosis and dialysis and how they relate to cell function

Tasks:

• • Read Sections 8.6 in your text

  • Watch the Kahn Academy video Diffusion and Osmosis

Upon successful completion of this objective, you should be able to:

• • • Differentiate between dialysis and osmosis

    • Discuss the roles that dialysis and osmosis play in the regulation of various molecules in living systems