Answer:
solubility is the amount of a substance that will dissolve in a given amount of another substance. To find the solubility of the salt at 50°C, you need to divide the mass of the salt by the mass of the solvent and multiply by 100 to get the percentage. In this case, the solubility is (25/50) x 100 = 50%. This means that 50 grams of solvent can dissolve 25 grams of salt at 50°C.