Question

For each described change, determine the generally expected impact on a salt's solubility.

1. Doubling the amount of salt added to a saturated solution ______.
2. Cooling a saturated solution by 10 °C________.
3. Placing a saturated solution in a hot water bath_________.

Answer 1

Doubling the amount of salt does not impact solubility, cooling a solution decreases solubility, and heating a solution increases solubility.

Step-by-step explanation:

1. Doubling the amount of salt added to a saturated solution does not have any impact on the solubility of the salt. Once a solution is saturated, it means that it has already reached its maximum solubility at a given temperature. Adding more salt will not dissolve and will remain as solid salt at the bottom of the solution.

2. Cooling a saturated solution by 10 °C generally decreases the solubility of the salt. As temperature decreases, the solubility of most salts decreases. This means that more of the salt will precipitate out of the solution and form solid crystals.

3. Placing a saturated solution in a hot water bath generally increases the solubility of the salt. As temperature increases, the solubility of most salts increases. This means that more of the salt will dissolve and remain in the solution.