Lesson: Filtration and Crystallization Chemistry

In this lesson, we will learn how to separate mixtures using filtration and crystallization, decide the apparatus needed, and determine when each should be used.

Lesson Plan

Students will be able to

describe and explain how filtration can be used as a separation and purification method,
describe and explain how crystallization can be used as a separation method,
identify crystallization and filtration labware and apparatus from descriptions and illustrations,
describe and explain how crystals can be obtained from evaporating all the solvent,
describe the key steps in performing filtration or crystallization,
identify the best methods for performing particular separations,
identify which purification and separation method would be best for a given mixture or experiment,
identify problems, errors, and potential hazards that may occur during filtration or crystallization.

Lesson Video

Lesson Explainer

Lesson Worksheet

Q1:

Which of the following methods is the most appropriate for recovering a solute from a solution containing other, more soluble solutes?

Q2:

Which of the following methods is the most appropriate for separating a solid from a liquid?

Q3:

Which technique could be used to obtain pure solid copper sulfate from a solution of copper sulfate and sodium chloride in water?