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Questions and Answers
Raising the temperature of a solvent generally decreases the solubility of a solute.
Raising the temperature of a solvent generally decreases the solubility of a solute.
False (B)
Sugar is generally more soluble in water than flour.
Sugar is generally more soluble in water than flour.
True (A)
A solvent cannot dissolve nail polish at all.
A solvent cannot dissolve nail polish at all.
False (B)
The amount of solute in a given amount of solvent is referred to as concentration.
The amount of solute in a given amount of solvent is referred to as concentration.
Stirring a solution has no effect on how quickly a solute dissolves.
Stirring a solution has no effect on how quickly a solute dissolves.
Acetone is an effective solvent for dissolving substances like salt.
Acetone is an effective solvent for dissolving substances like salt.
The maximum amount of solute that can be dissolved in a solvent is known as solubility.
The maximum amount of solute that can be dissolved in a solvent is known as solubility.
Decreasing the temperature of a solvent generally increases solubility.
Decreasing the temperature of a solvent generally increases solubility.
Increasing the temperature of a solvent generally decreases the solubility of a solute.
Increasing the temperature of a solvent generally decreases the solubility of a solute.
Nail polish is soluble in water.
Nail polish is soluble in water.
Stirring a solution helps to distribute solute particles more evenly and can increase the rate of solubility.
Stirring a solution helps to distribute solute particles more evenly and can increase the rate of solubility.
A solution with a high amount of solute in a given solvent is described as dilute.
A solution with a high amount of solute in a given solvent is described as dilute.
The maximum amount of solute that can dissolve in a solvent at a given temperature is known as solubility.
The maximum amount of solute that can dissolve in a solvent at a given temperature is known as solubility.
Salt is an example of a solute that can dissolve in water.
Salt is an example of a solute that can dissolve in water.
All substances are soluble in every solvent.
All substances are soluble in every solvent.
The concentration of a solution refers to how much solute is dissolved in a specific amount of solvent.
The concentration of a solution refers to how much solute is dissolved in a specific amount of solvent.
Vinegar is insoluble in water and does not form a solution.
Vinegar is insoluble in water and does not form a solution.
Wood is a soluble substance that dissolves easily in water.
Wood is a soluble substance that dissolves easily in water.
A solvent is present in a smaller amount than the solute within a solution.
A solvent is present in a smaller amount than the solute within a solution.
When a solute dissolves in a solvent, its distinct properties become less noticeable.
When a solute dissolves in a solvent, its distinct properties become less noticeable.
Insoluble objects can still maintain their distinct properties while mixed with water.
Insoluble objects can still maintain their distinct properties while mixed with water.
Sugar is an example of a substance that is soluble in water.
Sugar is an example of a substance that is soluble in water.
The temperature of a solvent has no effect on the solubility of a solute.
The temperature of a solvent has no effect on the solubility of a solute.
A solution is formed only when both solute and solvent are liquids.
A solution is formed only when both solute and solvent are liquids.
Study Notes
Solubility Overview
- Solubility refers to the maximum amount of a solute that can dissolve in a specific amount of solvent at a given temperature.
- Factors affecting solubility include the nature of solute and solvent, temperature, stirring method, amount of solvent, and particle size of the solute.
Nature of Solute and Solvent
- The solubility of a solute is influenced by its chemical properties in relation to the solvent.
- Example: Salt is soluble in water, while nail polish dissolves in acetone but not in water.
Temperature Effects
- Raising the temperature generally increases the solubility of a solute in a solvent.
- Example: Hot water dissolves medicine more effectively than cold water.
Manner of Stirring
- Stirring accelerates the dissolution process by distributing the solute throughout the solvent, promoting diffusion.
- Without stirring, solute concentration remains high near undissolved particles, slowing down the dissolution process.
Concentration
- Concentration distinguishes the amount of solute present in a solution; a dilute solution contains little solute, while a concentrated solution has a high solute amount.
- Solubility has a limit, known as the maximum solubility, beyond which no more solute can dissolve in the solvent.
Distinct Properties of Solvents
- Solvents are usually present in larger quantities than solutes in a solution.
- When a solute dissolves, its distinct properties become less noticeable.
Insoluble Substances
- Substances like sand, oil, metal nails, wood, and plastic do not dissolve in water, retaining their distinct characteristics.
Review and Assessment Activities
- Various exercises on identifying solutes and solvents, solubility of substances in different solvent pairs, and understanding the effects of temperature and stirring on solubility.
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Description
This quiz explores the various factors that influence the solubility of substances. You'll learn about the nature of solutes and solvents, the impact of temperature, stirring, and more. Test your knowledge of how these elements interact to affect solubility in different conditions.
