Cambridge Secondary (7-9). Stage 8. MCE Science. Workbook - Unit 5: Mixtures and Solubility - Question 27

In this experiment, you will heat water and try to dissolve more salt in the water as the temperature increases. Three separate beakers each start with 50 cm³ of water; investigate sodium chloride, magnesium sulfate and copper sulfate separately. Record the mass dissolved at 20°C, 40°C, 60°C and 80°C for each salt, using your own measured results.

Explain how an increase in temperature affects the solubility of the salts.