Question

which of the following is equal to the solubility of a solute in a particular solvent?
select all that apply:
the maximum equilibrium concentration of solute that can be achieved.
the amount of solvent required to dissolve 1 g of solute.
the amount of solvent required to dissolve 1 mol of solute.
the concentration of solute in a saturated solution.

Explanation:

Solubility is defined as the maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature to form a saturated solution. A saturated solution has reached the equilibrium state where the rate of dissolution equals the rate of crystallization. So, the maximum equilibrium concentration of solute (which is what solubility represents in terms of concentration) and the concentration of solute in a saturated solution (since in a saturated solution, this concentration is the solubility - related value) are correct. The amount of solvent required to dissolve a specific amount (1g or 1mol) of solute is not the definition of solubility. Solubility is about the amount of solute per amount of solvent (or in terms of concentration), not the reverse (amount of solvent per amount of solute).

Answer:

• The maximum equilibrium concentration of solute that can be achieved.
• The concentration of solute in a saturated solution.