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Secondary III • 2yr.


I can't quite understand the concept of solubility, could you please explain it to me?

Thanks a lot!


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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

    Team Alloprof • 2yr.


    Thank you for your question😉

    Solubility is the ability of a substance to be dissolved in a solvent at a set temperature. Only a certain quantity of substances is dissolvable before reaching the saturation point of the solution. In a saturated solution, it is impossible to dissolve more solute. Therefore, if we keep adding more, a deposit will form at the bottom of the solution. Then, if we keep adding more solute to the saturated solution, we will call it a supersaturation. In a supersaturated solution, the concentration of the solution is higher than the one of the saturated solution.

    When talking about solubility, the solute must be soluble, which means that it must have the ability to dissolve in a solvent.

    Important!! The solubility of a solvent depends on the temperature. If the temperature increases, the solvent solubility increases, and if the temperature decreases, the solvent solubility decreases. That is why it is easier to dissolve salt in hot water than in cold water.

    Warning!!  For gaseous solutes, it is the opposite. If the temperature increases, the solubility decreases.

    If you have any other questions, don't hesitate to let us know!

    Éveline 😉

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