Solubility

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What is solubility?

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Solubility is the ability of a substance (solute) to dissolve in a solvent, forming a solution. It is usually expressed in grams of solute per 100 grams of solvent.

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What is a saturated solution?

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A saturated solution is one that contains the maximum amount of solute that can dissolve at a given temperature. Any additional solute will not dissolve.

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What is an unsaturated solution?

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An unsaturated solution is one that contains less solute than the maximum amount that can dissolve at a given temperature. More solute can still be added.

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What is a supersaturated solution?

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A supersaturated solution is one that contains more solute than can normally dissolve at a given temperature. This is achieved by heating the solution and then cooling it.

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How does temperature affect solubility?

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Generally, for most solids, solubility increases with temperature. However, for gases, solubility decreases as temperature increases.

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What is the solubility of KBr at 80°C?

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The solubility of KBr at 80°C is 100 grams per 100 grams of water.

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At what temperature do KBr and KNO3 have the same solubility?

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KBr and KNO3 have the same solubility at 55°C.

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If NaNO3's solubility is 80 g/100 g of H2O at 10°C, what is its solubility in 50 g of H2O?

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The solubility of NaNO3 in 50 g of H2O is 40 grams.

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Arrange the following substances in order of solubility at 55°C: NaCl, NH4Cl, KBr, NaNO3.

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The order from lowest to highest solubility is: NaCl, NH4Cl, KBr, NaNO3.

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What is the formula for calculating solubility?

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Solubility (g/100 g of solvent) = (mass of solute / mass of solvent) x 100.