Question

give an activity to show the presence of crystallization of water in Salt

Answer 1

Aim- To determine the percentage content of water (H2O) in hydrated copper(II) sulphate crystals (CuSO4 . 5H2O). Equipment- Approximately 1 gram of copper sulphate crystals, evaporating dish, tongs, Bunsen burner, gauze, tripod, spatula, weighing balance. Method- a) Set up the Bunsen burner, gauze and tripod. c) Weigh the evaporating dish and approximately 1 gram of copper sulphate crystals. d) Gently heat the copper sulphate crystals in the evaporating dish, until they appear to be white (If heated too much, the crystals will break down further and turn yellow.) e) Take the evaporating dish away from the heat with the tongs, and weigh the evaporating dish containing the now white crystals. f) To determine the percentage water, you subtract the weight of the crucible from the final weight, and then you subtract the weight of the substance left from the initial weight of the copper sulphate crystals.

Reference https://www.physicsforums.com/threads/experiment-on-water-of-crystallization.639621/