qqp question1: A student dissolves 20g of salt in a pan of 200 mL of water. How much salt is left after all the water evaporates? question2: At 20°C, the solubility of LiF in water is 0.27 g per 100 mL, whereas that of LiBr is 167 g per 100 mL. Can you explain the relative solubility of the two salts?