Multiple Choice
According to general solubility rules, which factor typically needs to increase to make a solid substance more soluble in water?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following best describes the difference between solubility and concentration?
A
Solubility and concentration both refer to the same property: the amount of solute in a solution.
B
Solubility is the maximum amount of solute that can dissolve in a solvent at a given temperature, while concentration is the actual amount of solute dissolved in a specific amount of solvent.
C
Solubility is the amount of solvent present, while concentration is the amount of solute that can dissolve at any temperature.
D
Solubility refers to the rate at which a solute dissolves, while concentration is the total mass of solvent present.
Verified step by step guidance1
Step 1: Understand the definition of solubility. Solubility is the maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature, resulting in a saturated solution.
Step 2: Understand the definition of concentration. Concentration refers to the actual amount of solute dissolved in a specific amount of solvent or solution, which can vary from zero up to the solubility limit.
Step 3: Recognize that solubility is a fixed property at a given temperature, representing a limit, while concentration is a variable property that depends on how much solute is actually dissolved.
Step 4: Differentiate between the two by noting that solubility tells you the maximum capacity of the solvent to dissolve solute, whereas concentration tells you how much solute is currently dissolved.
Step 5: Conclude that the best description is: 'Solubility is the maximum amount of solute that can dissolve in a solvent at a given temperature, while concentration is the actual amount of solute dissolved in a specific amount of solvent.'
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