Solutions and Solubility Curves

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What is a solution?

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A homogeneous mixture of two or more substances where one substance (solute) is dissolved in another (solvent).

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What is solubility?

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The ability of a substance (solute) to dissolve in a solvent at a given temperature and pressure.

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What is a solubility curve?

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A graph that shows the relationship between the solubility of a substance and temperature.

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What does it mean to be a saturated solution?

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A solution that contains the maximum amount of solute that can dissolve at a given temperature.

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What does it mean to be an unsaturated solution?

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A solution that contains less than the maximum amount of solute that can dissolve at a given temperature.

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What is a supersaturated solution?

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A solution that contains more solute than can normally dissolve at a given temperature, often achieved by heating.

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How does temperature affect solubility of solids?

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Generally, the solubility of most solid solutes increases with an increase in temperature.

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How does temperature affect solubility of gases?

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Generally, the solubility of gases decreases with an increase in temperature.

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What is the solubility of NaCl at 20°C?

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Approximately 36g of NaCl can dissolve in 100g of water at 20°C.

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What is the solubility of KClO3 at 90°C?

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Approximately 50g of KClO3 can dissolve in 100g of water at 90°C.