Is Matter Around Us Pure Solutions Solution A solution is a homogeneous mixture of two or more...
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Transcript of Is Matter Around Us Pure Solutions Solution A solution is a homogeneous mixture of two or more...
Is Matter Around Us Pure Solutions
SolutionA solution is a homogeneous mixture of two or more
components. The dissolving agent is the solvent. The substance which is dissolved is the solute.
Examples
Lemonade Soda water
Is Matter Around Us Pure Solutions
Solid in Liquid Solution
Solution of Sugar in Water
Solution of Iodine in Alcohol (Tincture of Iodine)
Is Matter Around Us Pure Solutions
Solid in Solid Solution Gas in Liquid Solution
Gas in Gas Solution
Alloy
Aerated drinks
Air
Is Matter Around Us Pure Solutions
Properties of a Solution
Solution is a homogeneous mixture.
The particles of a solution are so small that they cannot be seen by naked eyes.
They do not scatter a beam of light passing through the solution. So, the path of light is not visible in a solution.
The solute particles cannot be separated from the mixture by the process of filtration.
Is Matter Around Us Pure Solutions
Dilute and Concentrated Solutions
Is Matter Around Us Pure Solutions
Saturated and Unsaturated Solutions
At any particular temperature, a solution that has dissolved as much solute as it is capable of dissolving, is said to be a saturated solution.
If the amount of solute contained in a solution is less than the saturation level, it is called an unsaturated solution.
The amount of the solute present in the saturated solution at this temperature is called its solubility.
Is Matter Around Us Pure Solutions
Concentration of a Solution
The concentration of a solution is the amount of solute present in a given amount (mass or volume) of solution or solvent.
Is Matter Around Us Pure Solutions
Ways of Expressing Concentration of Solution
Concentration of a Solution
Is Matter Around Us Pure Solutions
Concentration of a Solution
A solution contains 20 g of common salt in 250 g of water. Calculate the concentration in terms of mass by mass percentage of the solution.
Problem
Solution
Mass of solute (salt) = 20 gMass of solvent (water) = 250 gMass of solution = 20 g + 250 g = 270 g
Mass percentage of solution = Mass of solute/Mass of solution X 100 = 20/270 X 100 = 7.4 %
Is Matter Around Us Pure Solutions
Concentration of a Solution
What is the concentration in percent mass/volume of 150 mL of solution containing 30 g of solute?
Problem
Solution
Mass of solute = 30 gVolume of solution = 150 mL
Mass/volume percentage of solution = Mass of solute/Volume of solution X 100 = 30/150 X 100 = 20 %