How is an "unsaturated solution" defined?

Jun 12, 2016

Hmm, have to word this with care. How about, " a solution that contains less than an equilibrium quantity of solute" ?

Explanation:

The definition of a $\text{saturated solution}$ is...........

$\text{a solution that contains a concentration of solute equal}$ $\text{to that concentration that would be in equilibrium with}$
$\text{undissolved solute}$.

Definitions such as the the solvent holds all the solute that it can are inadequate and incorrect.

So another attempt:

$\text{An unsaturated solution is a solution which contains an amount}$ $\text{of solute LESS than the amount of solute that would be}$ $\text{equilibrium with undissolved solute} .$

So again our definition of $\text{saturation}$ refers to an equilibrium property.