what mass of Crystal will form whe saturated copper sulphate solution crystal in hundred cm cube of water at 60 C is cooled to 25 c
Answers
Answer:
Recrystallization can be performed to purify a solid. Crystals that are produced during a reaction can be contaminated with other chemicals that lowers the purity of the product. These impurities can be removed by dissolving the solid and slowly crystallizing the product. This dissolution and recrystallization is most effective when the temperature of the solution is slowly lowered and when minimum amount of solvent is used. Lowering the temperature lowers the solubility of most chemicals and so a saturated solution at a high temperature will have more solute than can be dissolved. The excess solute will crystallize.
Explanation:
The solubility of copper (II) sulphate is 18.5 g per 100 mL of water at 25 oC.
The mass of copper sulphate that will remain in solution...