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Multiple Choice
Which statement best describes the difference between a saturated and an unsaturated solution?
A
A saturated solution contains no dissolved solute, while an unsaturated solution contains the maximum amount of dissolved solute.
B
A saturated solution is always more concentrated than an unsaturated solution, regardless of the solute or solvent.
C
A saturated solution can dissolve more solute if the temperature is decreased, while an unsaturated solution cannot dissolve any more solute.
D
A saturated solution contains the maximum amount of solute that can dissolve at a given temperature, while an unsaturated solution contains less than the maximum amount of dissolved solute.
Verified step by step guidance
1
Understand the concept of solubility: Solubility is the maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature to form a stable solution.
Define a saturated solution: A saturated solution contains the maximum amount of solute dissolved in the solvent at a particular temperature, meaning no more solute can dissolve under those conditions.
Define an unsaturated solution: An unsaturated solution contains less solute than the maximum amount that can dissolve at that temperature, so more solute can still dissolve.
Compare the two: The key difference is that a saturated solution is at equilibrium with undissolved solute present (or at the limit of solubility), while an unsaturated solution is not at this limit and can dissolve additional solute.
Note the temperature dependence: The maximum amount of solute that can dissolve (solubility) often changes with temperature, affecting whether a solution is saturated or unsaturated.