Each of the questions or incomplete statements below is followed by five suggested answers or completions. Select the one that is best in each case.
To determine whether a water solution of at room temperature is supersaturated, one can
Select an Answer
heat the solution to its boiling point
add water to the solution
add a crystal of to the solution
acidify the solution
cool the solution to its freezing point
The other options describe processes that would not enable you to determine whether or not the solution was supersaturated: you would observe the same thing either way. Supersaturated solutions are not stable. If you add more solute (in this case the crystal) to a supersaturated solution, the extra solute will precipitate out of the solution, indicating that the solution was indeed supersaturated.