Question

To prepare a saturated solution of common salt in distilled water and to determine its solubility at room temperature

Answer 1

Explanation:

Make a saturated NaCl solution by mixing an excess of salt into distilled water. The solubility of NaCl in H2O is approximately 35g/100ml at 20℃, so 100g of NaCl into 200ml of H2O should be sufficient. Transfer enough of the saturated solution into a Petri dish to cover the surface of the dish