How do we know what is saturated, unsaturated and supersaturated?
I don't know what you mean by point.
Saturated means no more can dissolve under normal conditions, unsaturated means more can dissolve, supersaturated (as silly as it sounds) means it has dissolved more than is normally possible, the solution is not at equilibrium, and, given the opportunity, the excess will crystallize back to a saturated solution.
Is it like this? When the point is down of the point it is unsaturated, in the point saturated and above the point supersaturated?
yes thank yew finally an answer!
To determine whether a substance is saturated, unsaturated, or supersaturated, we need to understand the concept of solubility and concentration. Solubility refers to the maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature. Concentration, on the other hand, refers to the amount of solute dissolved in a solution.
1. Saturated Solution:
A saturated solution is one in which the maximum amount of solute has been dissolved in the solvent at a specific temperature. In other words, no more solute can be dissolved in the solution. If additional solute is added, it will settle at the bottom of the container without dissolving. To determine if a solution is saturated, follow these steps:
- Add solute to the solvent, stirring until no more solute dissolves.
- Continue adding small amounts of solute and stirring. If the additional solute no longer dissolves, the solution is saturated.
2. Unsaturated Solution:
An unsaturated solution is one in which more solute can be dissolved in the solvent at a specific temperature. In an unsaturated solution, the concentration of solute is less than the maximum solubility. To determine if a solution is unsaturated:
- Prepare a solution with a known concentration.
- Slowly add solute to the solution, stirring after each addition.
- Continue adding solute until no more dissolves, or until the solubility limit is reached.
3. Supersaturated Solution:
A supersaturated solution is one that contains more solute than it theoretically should be able to dissolve at a specific temperature. This can be achieved by dissolving the solute in a hot solvent and then allowing it to cool slowly, or by evaporating some of the solvent from a saturated solution. To determine if a solution is supersaturated:
- Prepare a saturated solution by dissolving solute in the solvent until no more dissolves.
- Heat the solution to increase its temperature above the boiling point of the solvent.
- Allow the solution to cool slowly, without any disturbance, to room temperature.
- If crystals form without any visible disturbance or agitation, it suggests the presence of a supersaturated solution.
It is important to note that supersaturated solutions are not stable and can spontaneously return to a saturated state if disturbed or if a small amount of solute is introduced.