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43. List and describe three factors that influence solubility:


The solubility of a given solute in a given solvent typically depends on temperature. For many solids dissolved in liquid water, the solubility increases with temperature up to 100 °C.
In liquid water at high temperatures, the solubility of ionic solutes tends to decrease due to the change of properties and structure of liquid water. Gaseous solutes exhibit more complex behavior with temperature. As the temperature is raised, gases usually become less soluble in water, but more soluble in organic solvents.

For condensed phases (solids and liquids), the pressure dependence of solubility is typically weak and usually neglected in practice. The pressure dependence of solubility does occasionally have practical significance.

A popular aphorism used for predicting solubility is "Like dissolves like".This indicates that a solute will dissolve best in a solvent that has a similar polarity to itself. This is a rather simplistic view, since it ignores many solvent-solute interactions, but it is a useful rule-of-thumb.

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