Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Measuring solubility [chemistry only]
18 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →State the difference between a solution and a saturated solution, as used in chemistry.
Question 2
5 marks · Hard
Answer and see the solution →The solubility curves below show the solubility of salt X and salt Y in water at different temperatures.
Solubility of Salts X and Y in Water (a)[1 mark]State which salt is more soluble in water at 30°C.
(b)[1 mark]Calculate the difference in solubility between salt X and salt Y at 60°C.
(c)[2 marks]Describe how the solubility of each salt changes as the temperature increases from 10°C to 70°C.
(d)[1 mark]Explain why it is important to use the same amount of water when measuring the solubility of different salts.
Question 3
2 marks · Hard
Answer and see the solution →Describe one safety precaution and one step to ensure accuracy when carrying out a solubility experiment for a solid in water.