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Questions and Answers
What happens to the solubility of most ionic compounds as the temperature increases?
What happens to the solubility of most ionic compounds as the temperature increases?
- Solubility increases. (correct)
- Solubility decreases.
- Solubility fluctuates unpredictably.
- Solubility remains constant.
Which of the following statements accurately describes a supersaturated solution?
Which of the following statements accurately describes a supersaturated solution?
- A solution containing the maximum amount of solute that can dissolve at a given temperature.
- A solution containing less solute than the saturated amount, allowing for further dissolution.
- A solution containing more solute than the saturated amount, making it unstable. (correct)
- A solution where the solute and solvent are in equilibrium, with no further dissolution occurring.
If the solubility of sodium nitrate at 20°C is 85 g, what can be concluded about a solution containing 70 g of sodium nitrate in 100 g of water at 20°C?
If the solubility of sodium nitrate at 20°C is 85 g, what can be concluded about a solution containing 70 g of sodium nitrate in 100 g of water at 20°C?
- The solution is a mixture, not a solution.
- The solution is unsaturated. (correct)
- The solution is supersaturated.
- The solution is saturated.
What does the solubility curve for sodium chloride (NaCl) suggest about its solubility behavior with temperature changes?
What does the solubility curve for sodium chloride (NaCl) suggest about its solubility behavior with temperature changes?
Why do chemists often use more specific terms like molarity to describe solution concentration instead of terms like "saturated" or "unsaturated?"
Why do chemists often use more specific terms like molarity to describe solution concentration instead of terms like "saturated" or "unsaturated?"
What is the maximum amount of sodium nitrate that can be dissolved in 100 g water at 60°C?
What is the maximum amount of sodium nitrate that can be dissolved in 100 g water at 60°C?
What is the solubility of a solution with less solute dissolved than the maximum amount at a given temperature?
What is the solubility of a solution with less solute dissolved than the maximum amount at a given temperature?
Which of the following statements about solubility is not true?
Which of the following statements about solubility is not true?
According to the passage, what is the solubility of salt (NaCl) at 20°C and 80°C?
According to the passage, what is the solubility of salt (NaCl) at 20°C and 80°C?
Which of the following compounds has a solubility that increases significantly with temperature?
Which of the following compounds has a solubility that increases significantly with temperature?
If a solution contains more solute than the maximum amount that can be dissolved at a given temperature, what is the solution called?
If a solution contains more solute than the maximum amount that can be dissolved at a given temperature, what is the solution called?
Why do chemists often prefer to use molarity instead of terms like 'saturated' and 'supersaturated'?
Why do chemists often prefer to use molarity instead of terms like 'saturated' and 'supersaturated'?
What is the primary factor that determines the maximum amount of solute that can dissolve in a solvent at a given temperature?
What is the primary factor that determines the maximum amount of solute that can dissolve in a solvent at a given temperature?
Flashcards
Saturated Solution
Saturated Solution
A solution with the maximum solute dissolved at a given temperature.
Temperature Effect on Solubility
Temperature Effect on Solubility
Higher temperatures usually increase solubility of solutes.
Supersaturated Solution
Supersaturated Solution
A solution containing more solute than the maximum amount at a given temperature; unstable.
Unsaturated Solution
Unsaturated Solution
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Solubility of Sodium Chloride
Solubility of Sodium Chloride
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Solubility Chart
Solubility Chart
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Temperature Effect
Temperature Effect
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Sodium Nitrate
Sodium Nitrate
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Super Saturated
Super Saturated
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Molarity
Molarity
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Solute vs. Solvent
Solute vs. Solvent
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Study Notes
Solubility and Saturated Solutions
- Saturated Solution: The maximum amount of solute that dissolves in a solvent at a specific temperature.
- Example (Sodium Nitrate): At 20°C, 85 g of sodium nitrate can dissolve. At 60°C, approximately 125 g (or 123 g) can dissolve.
- Solubility Increase with Temperature: Generally, increasing the temperature allows more solute to dissolve in most ionic compounds.
- Solubility Chart: Historical charts (e.g., CRC Handbook) display solubility values for various substances at different temperatures, illustrating the saturated amount of solute.
Types of Solutions
- Saturated Solution: Contains the maximum solute at a given temperature; represented by a line on the solubility chart.
- Supersaturated Solution: Contains more solute than a saturated solution; unstable.
- Unsaturated Solution: Contains less solute than a saturated solution; more solute can dissolve.
Temperature Effects on Salt Solubility
- Sodium Chloride (NaCl): The solubility of NaCl is relatively constant across a range of temperatures (nearly flat line on solubility curve).
- General Trend: The solubility of most ionic compounds increases with increasing temperature.
Chemistry Terminology
- Precise Concentration Measures: Chemists commonly use molarity instead of terms like "saturated" or "unsaturated," which are more frequently used in biology.
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Description
Explore the concepts of solubility and saturated solutions in this quiz. Learn about saturated, supersaturated, and unsaturated solutions along with how temperature affects solubility. Test your understanding of solubility charts and key definitions in chemistry.
