Asked by hj
A substance is boiled repeatedly and stirred, but the solute never mixes with the solvent. Which best describes why?
The temperature was not high enough to mix the solute and solvent.
The chemical properties of the solute and solvent are different.
The pressure was increased.
All Answers 1
Answered by
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The chemical properties of the solute and solvent are different.
Solubility depends on intermolecular forces ("like dissolves like"): if the solute and solvent have very different chemical natures (e.g., polar vs nonpolar) they won't mix well no matter how much you stir or heat. Pressure changes mainly affect gases, and boiling already implies high temperature.
Solubility depends on intermolecular forces ("like dissolves like"): if the solute and solvent have very different chemical natures (e.g., polar vs nonpolar) they won't mix well no matter how much you stir or heat. Pressure changes mainly affect gases, and boiling already implies high temperature.
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