Multiple Choice
According to general solubility rules, is PbBr2 (lead(II) bromide) soluble or insoluble in water?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following statements best describes a supersaturated solution?
A
A solution in which no more solute can dissolve at a given temperature.
B
A solution that contains more dissolved solute than it would normally hold at a given temperature.
C
A solution that contains less solute than the maximum amount that can dissolve at a given temperature.
D
A solution in which the solute is completely undissolved.
Verified step by step guidance1
Understand the concept of solubility: Solubility is the maximum amount of solute that can dissolve in a solvent at a specific temperature to form a stable solution.
Recognize the types of solutions based on solute concentration relative to solubility: unsaturated (less solute than maximum), saturated (maximum solute dissolved), and supersaturated (more solute than normally possible).
Identify that a saturated solution contains the maximum amount of solute that can dissolve at a given temperature, meaning no more solute can dissolve under those conditions.
Understand that a supersaturated solution is an unstable solution that temporarily contains more dissolved solute than the equilibrium solubility limit at that temperature.
Conclude that the best description of a supersaturated solution is one that contains more dissolved solute than it would normally hold at a given temperature.
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