Multiple Choice
Which of the following compounds has the greatest solubility in water?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following best indicates that a solution is saturated?
A
The solution changes color.
B
The temperature of the solution increases.
C
The solution is clear and all solute has dissolved.
D
Undissolved solute remains in the solution after stirring.
Verified step by step guidance1
Understand the definition of a saturated solution: it is a solution in which the maximum amount of solute has dissolved at a given temperature, and no more solute can dissolve.
Recognize that when a solution is saturated, any additional solute added will not dissolve and will remain as undissolved solid in the solution.
Analyze the given options to identify which one directly indicates saturation: color change or temperature change are not definitive signs of saturation, and a clear solution with all solute dissolved indicates an unsaturated or possibly saturated solution but not necessarily saturated.
Focus on the option stating that undissolved solute remains after stirring, which means the solution has reached its maximum solubility and is therefore saturated.
Conclude that the presence of undissolved solute after stirring is the best indicator that the solution is saturated.
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