I can t tell the difference between saturated and unsaturated solutions in chemistry, can anyone hel

A condition in which a substance dissolves in solution to the point that it can no longer be dissolved is a saturated solution.

Saturated solution: In a solvent, a solute is dissolved until it can no longer be dissolved. (Solubility has been reached).

Unsaturated solution: In a solvent, a solute is dissolved and can continue to dissolve this solute. (solubility has not yet been reached).

Just like a person can no longer eat, he is full, if he can still eat, it means that he is not full, the same is true of the solution, the one that can continue to dissolve the solute is the saturated solution, and the one that can no longer continue to dissolve is unsaturated.

For example, put a few pieces of sugar in a glass of water,,, observe whether it has melted or not,,, if there is some sugar left, it is a saturated solution,,, if there is no left, it is an unsaturated solution.

For example, do you think a glass of water can dissolve countless table salts, no, he has a limit, and when it reaches the limit, it is a saturated solution, otherwise it is unsaturated Understood.

To put it simply, there is no solute in the saturated solution, and it is completely dissolved. From this, unsaturation means that there are still some solutes that have not been dissolved.

A saturated solution is one in which the solute cannot be dissolved. In order to dissolve, some solute must come out, so there will be crystal precipitation.

The question will be given. Typical experiments will use saturation. Unsaturated solutions are those that can continue to melt solutes (except for supersaturated solutions).

A saturated solution can no longer dissolve the solute, while an unsaturated solution can continue to dissolve.

1. Saturated solution refers to the fact that at a certain temperature, a certain dose of solvent cannot continue to dissolve the solute, which means that the concentration of the solution remains unchanged.

2. At a certain temperature, a solution of a certain solute can no longer be dissolved in a certain amount of solvent (that is, the solubility of the solute has been reached.

of the solution). A solution in which a solute can continue to dissolve at the same temperature (i.e., a solution that has not yet reached the solubility of the solute) is called an "unsaturated solution". If the solute is a gas, the pressure of the gas is also indicated.

Whether the solution is saturated or unsaturated, the most important thing is to see if it can dissolve more solutes, nor to see the concentration or light of the solution, the solubility of each substance is not the same, the solubility of the same substance at different temperatures is also different, some substances, such as calcium carbonate, the solubility is very small, even if it is a saturated solution of calcium carbonate, it still looks very light, calcium carbonate at 8 degrees Celsius, 100 grams of water can only dissolve grams at most. Contrary to calcium carbonate, some substances such as sucrose have a great dissolving capacity, even if the solution of sucrose is already very thick, but it is not a saturated solution of sucrose, sucrose at 20 degrees Celsius, 100 grams of water is considered to dissolve 200 grams of sucrose, but the sucrose solution at this time is still not a saturated solution, because it can also dissolve more sucrose.

The solubility of the substance is also affected by the temperature, for example, at 20 degrees Celsius, 100 grams of water can dissolve up to 203 grams of sucrose, but in 30 degrees Celsius water, 100 grams of water can dissolve sucrose. Therefore, the solution formed when dissolving 203 grams of sucrose in 100 grams of water is a saturated solution of sucrose at 20 degrees Celsius, but it is an unsaturated solution of sucrose at 30 degrees Celsius. Therefore, when we say whether a particular solution is a saturated solution, we must state at what temperature it is formed.

The methods of changing an unsaturated solution to a saturated solution include changing the temperature, increasing the solute, and evaporating the solvent.

Data Extension:

Unsaturated solution (unsaturated solution) at a certain temperature, in a certain amount of solvent, can also dissolve a certain substance of the solution is called the unsaturated solution of this solute.

After the hot solution cools, the solute that has been dissolved in the solution precipitates out of the solution in the form of crystals, a process called crystallization. The above transformation conditions are suitable for most solid substances, because the maximum amount of most solid substances dissolved in a given amount of water increases with increasing temperature.

The maximum amount of hydrated lime dissolved in a certain amount of water decreases with the increase of temperature, therefore, if the unsaturated solution of hydrated lime is converted into a saturated solution, the temperature should be increased when the temperature is changed; If the saturated solution is converted to an unsaturated solution, the method of reducing the temperature or increasing the solvent can be used.

Specify "a certain temperature" and "a certain amount of solvent", because by changing the amount of solvent or temperature, saturated and unsaturated solutions can be converted into each other.

It should be clear that the saturated solution of "a certain substance" or the unsaturated solution of Ranshenbi, such as the solution that can no longer dissolve NaCl under certain conditions, may also dissolve sucrose, for sucrose, the solution is an unsaturated solution, so it must be indicated which solute saturated solution or unsaturated solution.

2. A certain substance has a certain solubility in the solvent, and when this solubility is reached, the remaining substance can no longer be dissolved, and this state is saturated. When more solvent is added, more of a substance can be dissolved, and it becomes an unsaturated solution.

3. For most substances, the solubility will also become higher after the temperature is raised, and more substances can be dissolved. Of course, there are also substances whose solubility is less affected by temperature, such as NaCl.

No, an unsaturated solution becomes a saturated solution, there are three ways:

1. If the temperature remains unchanged, continue to add this solute, which can become a saturated solution, and the temperature will not change, and the solubility of the substance will not change.

2. Under the condition that the temperature is unchanged, the evaporated solvent can also be changed into a saturated solution, and the solubility of the substance without changing the temperature is also unchanged.

3. Cool down the unsaturated solution, due to the change in temperature, the solubility of the substance decreases, so it becomes a saturated solution.

Therefore, the conversion of saturated solution to unsaturated solution is conditional, and the above statement does not specify the temperature and solvent amount is meaningless.

Saturated solution refers to the solution when the solvent can no longer dissolve a certain solute state, and if it can continue to dissolve, it is called an unsaturated solution.

2.For example, the saturated solution of sodium chloride cannot continue to dissolve sodium chloride, but it can continue to dissolve other substances such as sodium nitrate, so it is a saturated solution for sodium chloride but an unsaturated solution for sodium nitrate. A saturated solution is for a certain solute.

3.Saturated and unsaturated solutions can be converted into each other under certain conditions (increase or decrease solute solvent, increase or decrease temperature).

4.A saturated solution is not necessarily a concentrated solution, and an unsaturated solution is not necessarily a dilute solution. This is related to the solubility of the solute, and in addition, the concentrated and dilute solution is also a relative concept with no clear boundaries.

At a certain temperature and a certain amount of solvent, when a certain solute can no longer be dissolved, it is a saturated solution at this temperature, and if the solute can continue to be dissolved, it is an unsaturated solution

Saturated and unsaturated solutions are qualitative descriptions of the concentration of a solution.