Evaporation and Crystallization
Learning Objective
I can explain how to obtain pure crystals from a solution using evaporation and crystallization techniques, and relate it to separating mixtures like magnesium chloride from calcium sulfate.
Practice Questions
This lesson includes 6 practice questions to reinforce learning.
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1. Explain the difference between evaporation and crystallization as methods for separating a soluble solid from a liquid. When would you choose crystallization over evaporation?
2. Imagine you are trying to separate salt (sodium chloride) from a mixture of salt, sand, and water. Describe the steps you would take, including the techniques you would use and why.
3. Why is it important to cool a solution slowly during the crystallization process? What might happen if you cooled it very quickly?
...and 3 more questions
Educational Video
GCSE Chemistry - Filtration, Evaporation & Crystallisation
Cognito