When a solution is said to be saturated What is the effect of temperature on the solubility of a solute in a solvent?

A saturated solution is one that contains the maximum amount of solute capable of being dissolved, whereas unsaturated solutions contain less than the maximum amount of solute capable of being dissolved. Because carbonated water is saturated with carbon, it emits carbon through bubbles. Sand in water is an example of an unsaturated.

A saturated solution is a chemical solution that contains the greatest quantity of solute contained in the solvent. The solute cannot be dissolved anymore in a saturated solution. 

The saturation point of any liquid is determined by the type of the material and the temperature. A saturated solution is one in which the quantity of dissolved solute equals the saturation point of the solvent. A solvent can dissolve some particular types of solutes in it. 

The maximum amount of solute that can be dissolved in a solvent at a specified temperature can be termed as a saturated solution. A solution cannot dissolve any more solute further upon reaching saturation. The undissolved substances remain at the bottom. The point at which the solute stops dissolving in the solvent is termed the saturation point.

Following are the examples of Saturated Solutions:

  • Soil is a saturated mixture consisting of nitrogen. On attaining the saturation point, the excess nitrogen is emitted out into the air in the form of gas.
  • Beverages, such as cold drinks are saturated solutions of dissolved carbon in water.
  • Protein drinks which is a saturated solution of protein powder in milk etc.

Unsaturated Solutions

A solute must be added to a solvent in order for a solution to form. At first, the solute dissolves in a solvent and forms a homogeneous solution. A solution in which solutes dissolve is referred to as an unsaturated solution. A solution is made up of two types of particles: solutes and solvents. Water is commonly used as a solvent (which is one of the reasons why water is also called the universal solvent). 

Unsaturated solutions have the ability to dissolve additional solute until they achieve saturation. Solutes will no longer dissolve in the solvent after reaching the saturation threshold, resulting in unsaturated solutions. 

As a result, all solutions are considered to be largely unsaturated in nature before being transformed into saturated solutions by adding solute to them. The amount of solute that is contained in lesser amounts than the maximum value, that is before the solution reaches the saturation level is called an unsaturated solution. No remaining substances leave at the bottom, that is, all the solute is dissolved in the solvent. An unsaturated solution is basically a chemical solution that has a solute concentration lesser than its corresponding equilibrium solubility. 

Following are the examples of Unsaturated Solutions:

  • Salt or sugar dissolved in water below the saturation point.
  • Air or mist.
  • Iced coffee.
  • Vinegar is the acetic acid solution in water.

Interconversion of Saturated and Unsaturated Solution 

Saturated solution on heating becomes unsaturated whereas an unsaturated solution becomes saturated upon cooling. On heating the saturated solution, the solubility of that particular solute increases in the given solvent. As a result of this, more solute can be dissolved into the solvent. However, in the case of cooling a solution, the solute particles which were initially dissolved in the solvent separate out as crystals.

Solubility

The amount of the solute present in the saturated solution at the given temperature can be termed as the solubility of the solute in the solvent. 

The maximum amount of a solute that can be dissolved in 100 gm of a solvent. Different solutes possess varying different solubilities. Solubility increases with an increase in temperature. In the case of saturated solutions, the solute concentration is equivalent to the equilibrium solubility. The solubility of a substance depends on the solvent. It is observed that sugar dissolves in water but not in oil. 

Effect of Temperature and Pressure on Solubility

  1. The solubility of solids in liquids typically increases as temperature rises and decreases as temperature falls.
  2. The solubility of solids in liquid is unaffected by pressure variations.
  3. The solubility of gases in liquids typically decreases as temperature rises and rises as temperature falls.
  4. Gas solubility in the liquid increases with rising pressure and decreases with lowering pressure.

Concentration of Solution

The quantity of solute present in a specified quantity of the solvent can be termed as the concentration of the solution. It is measured as a fraction of the amount of solute dissolved in a given mass or volume of a solvent. 

A solution in which less amount of solute is present is called a dilute solution whereas, a solution containing more solute is called a concentrated solution. 

Mathematically, 

  • Concentration of solution = Amount of Solute / Amount of Solvent

Also, 

  • Concentration of solution = Amount of Solute / Amount of Solution

Sample Problems

Problem 1: A solution is formed by dissolving 20g of sodium chloride in 180 g of water as solvent. Compute the concentration of the solution.

Solution: 

Given, 

Mass of sodium chloride = 20 g

Mass of water = 180 g

We know, 

Mass of solution = Mass of solute + Mass of solvent

= 20 g + 180 g

= 200 g

Concentration of solution is given by, 

= [(Mass of solute)/ (Mass of solution)] × 100

= (20/200) × 100

= 10 %

Problem 2: How to identify whether the solution is saturated or not?

Solution: 

We take a solution with a solute dissolved in the solvent. On constant stirring, if more solute can be dissolved into the solvent, then the solution is unsaturated otherwise saturated. 

Problem 3: How can you create a saturated solution? 

Solution: 

Following are the steps to create a saturated solution:

  • Adding a solute to a solvent beyond the point that solid gets dissolved in the solvent.
  • Adding seed crystals to a supersaturated solution.
  • Evaporating a solvent from a solution till the point the solute in the solution begins to crystallize or precipitate.

Problem 4: Give some outdoor examples of saturated solutions. 

Solution: 

Some of the outdoor examples of saturated solutions are:

  1. Seawater – A saturated solution with salt as the solute.
  2. Soil – A saturated solution with nitrogen.
  3. Air – A saturated solution with moisture.
  4. Freshwater – Water containing elements and metals, like potassium, dissolved till saturation.

Problem 5: Give one example to show a solution that can be unsaturated, saturated, and supersaturated at different intervals of time. 

Solution: 

Considering a soda bottle can show that a solution can be unsaturated, saturated, and supersaturated at different intervals of time. Before opening the soda bottle, the solution is supersaturated, On opening the bottle, the excess dissolved carbon dioxide escapes from the surface resulting in the formation of bubbles. This is a saturated solution. When left for a large amount of time, the soda water goes flat and turns into an unsaturated solution. 

Article Tags :

>

A solution contains more solute than would normally dissolve at a certain temperature.

Suggest Corrections0

A saturated solution is a solution that contains the maximum amount of solute that can be dissolved under the condition at which the solution exists.

In chemistry, after studying solutions and properties of the solution, one can understand that a solution can reach a status of saturation. This state is when the solution has reached a point in which no more solute can be added. Addition of solute after this point would result in a solid precipitate or gas being released. Such a mixture is called a saturated solution.

Table of Contents

How to Prepare a Saturated Solution?

A saturated solution is prepared by continuously adding solute to the solution until a stage is reached where the solute appears as a solid precipitate or as crystals to form a highly saturated solution.

  1. Consider the process of adding table sugar to a container of water.
  2. Initially, the added sugar dissolves as the solution is stirred.
  3. Finally, as more sugar has added a point is reached where no amount of stirring will cause the added sugar to dissolve.
  4. The last added sugar remains as a solid on the bottom of the container, the solution is saturated.

Types of Saturation

The main three types of saturation are explained below.

Types of Saturation Definitions Example
Saturated Solution A saturated solution is a solution that is in equilibrium with respect to a given dissolved substance. Carbonated water
Unsaturated Solution A solution not in equilibrium with respect to a given dissolved substance and in which more substance can be dissolved. NaCl in water
Supersaturated Solution A solution contains more dissolved substance than a saturated solution does. Sugar is dissolved in saturated solution by heating

To Know About Solvents And Solutes, Watch The Below Video:

Factors affecting the Point of Saturation

  • With an increase in temperature the solubility of ionic solutions increases, except mixtures which are made up of compounds containing anions.
  • Solutes which are finely divided possess greater solubility.
  • The rate of crystallization is dependent upon the amount of solute at the crystal surface.
  • The solution is said to be saturated if the rate of crystallization and the rate of solubility are the same.
  • The net dissolving rate can be increased by stirring the solution which prevents the build-up of solute.
  • The response of the equilibrium system is predicted using Le Chatelier’s principle which depends upon the change in pressure, concentration or temperature.

Everyday Examples of Saturated Solution

  • Beverages are one of the most widely used and loved saturated solutions. In these drinks, water is a solvent and carbon is bombarded as a solute until the point of saturation is reached.
  • In the kitchen, many cooking recipes involves dissolving of salt, sugar and other household ingredients into the water. This procedure is temperature-dependent. As the temperature of water increases the solubility of the solute increases. After the point of saturation is reached the solute forms a visible layer on top of the solvent.
  • Soil present on the earth surface can also be called as a saturated mixture which consists of nitrogen. Once the saturation point is reached; the excess nitrogen is let out into the air in the form of gas.

A soda is a saturated solution of carbon dioxide in water. This is why, when the pressure is released, carbon dioxide gas forms bubbles. Adding chocolate powder to milk so that it stops dissolving forms a saturated solution.

Adding a spoonful of sugar to a cup of hot coffee produces an unsaturated sugar solution. Vinegar is an unsaturated solution of acetic acid in water. Mist is an unsaturated (but close to saturated) solution of water vapor in air.

The difference between saturated and unsaturated fat lies in the number of double bonds in the fatty acid chain. Saturated fatty acids lack double bonds between the individual carbon atoms, while in unsaturated fatty acids there is at least one double bond in the fatty acid chain.

The solution obtained by dissolving maximum amount of solute at a given temperature is known as saturated solution. A solution which contains more amount of solute than that is required to saturate it is known as supersaturated solution.

An aqueous solution can be rendered supersaturated by first dissolving the solute in water at an elevated temperature using enough to give a concentration just under its solubility at that temperature. After the last of the solute crystals have dissolved the solution is cooled.

Join BYJU’S to clarify your doubts by the expert mentors.

Put your understanding of this concept to test by answering a few MCQs. Click ‘Start Quiz’ to begin!

Select the correct answer and click on the “Finish” button
Check your score and answers at the end of the quiz

Visit BYJU’S for all Chemistry related queries and study materials

0 out of 0 arewrong

0 out of 0 are correct

0 out of 0 are Unattempted

View Quiz Answers and Analysis

Unsaturated solutions
Unsaturated solutions have the capacity to dissolve more of the solute. Saturated solutions have dissolved the maximum amount of solute possible at a given temperature. This is defines the solubility of the solute in the solvent. Supersaturated solutions contain more solute than is present in a saturated solution.

When more solute can be dissolved?

Briefly, most solutes dissolve to a certain extend in a solvent. When you can add more solute which continues to dissolve, your solution is said to be unsaturated. When you cannot dissolve any more solute at a given temperature, then your solution is now saturated.

What is it called when the maximum amount of solute is dissolved?

When the maximum amount of solute has been dissolved in a given amount of solvent, we say that the solution is saturated. with solute. When less than the maximum amount of solute is dissolved in a given amount of solute, the solution is unsaturatedA solution with less than the maximum amount of solute dissolved in it..

When no more solute can be dissolved in a solution is called?

Saturated Solution: A solution that cannot dissolve any more quantity of solute in a given amount of solvent at a given temperature. The saturated solution can also be made unsaturated by adding more solvent to it.

Which best describes a solution that contains the maximum dissolved solute?

A saturated solution is a solution that contains the maximum amount of solute that is capable of being dissolved.

What do you call the solution that contains more dissolved solute than a saturated solution those?

supersaturated solution. a solution that contains more dissolved solute than a saturated solution contains under the same conditions. solubility. the amount of that substance required to form a saturated solution with a specific amount of solvent at a specified temperature. solvated.

Which pertains to the maximum amount of solute dissolved in the solvent?

Answer : The solution that contains the maximum amount of solute dissolve by given amount of solvent is called Molarity.

Is it possible to dissolve more than maximum amount of solute?

Sometimes, a solution contains more dissolved solute than is normally possible. This type of solution is said to be supersaturated. A saturated solution can become supersaturated if more solute is added while the temperature is raised. Then if this solution is slowly cooled, the solute can remain dissolved.

When no more solute can be dissolved in solution at given temperature is called DASH solution?

A solution in which no more solute can be dissolved at a given temperature and pressure is called a saturated solution.

When a solution is saturated no more solute can dissolve in the solvent?

When a solution reaches the point where it cannot dissolve any more solute it is considered “saturated.” If a saturated solution loses some solvent, then solid crystals of the solute will start to form. This is what happens when water evaporates and salt crystals begin to form.

What kind of solution contains more solute than the maximum amount it can dissolve at a given temperature?

supersaturated solution
A supersaturated solution is a solution that contains more than the maximum amount of solute that is capable of being dissolved at a given temperature.

How can you increase the amount of solute dissolved in a solvent?

Raising the temperature is one way to change the solubility of the solute, because most solids are more soluble at higher temperatures. Another way to change solubility when the solute is a gas is to change the pressure. The solubility of gases in a liquid solvent increases at high pressure.

What is the difference between a solution and a solvent?

Solute = A chemical substance that can be broken down into individual particles (atoms, ions or molecules) and then absorbed by another chemical substance. Solutes can be solids, liquids or gases but are more commonly solids. Solution = a physical combination of two substances, at least one solvent and at least one solute.

What do you call a substance that dissolves in a liquid?

A substance that dissolves is said to be soluble. A solid dissolved in liquid makes a solution. In a solution the liquid is called the solvent, and the solid is called the solute. A solid that does not dissolve in a liquid is called insoluble.

Which is the solution with more solute than solubility?

An unsaturated solution has less solute than its solubility and hence can still add more solute, till it reaches the saturation level. A supersaturated solution has more solute than the solubility limit and hence the extra solute stays in the solvent. Hence, the answer is unsaturated solution.

Can a saturated solution dissolve any more solute?

Page Citation. Share Link. An unsaturated solution can dissolve more solute. In general, we can classify solutions as saturated, unsaturated and supersaturated. When the solute has reached its solubility limit, for a given solvent and conditions, the solution becomes saturated. A saturated solution will not dissolve any more solute

Related