Solutions And Suspensions

Solutions and

What is a Solution? • Solute: is a substance that dissolves. • Solvent: is a substance that the solute dissolves in and forms the bulk of the solution. SOLUTION: is a mixture of solute &

State any 4 examples of a Solution.

1) Salt water 2) Lemonade 3) Tea 4) Honey 5) Milk

Nature of • The solute breaks down into tiny particles that mix completely and evenly with the particles of solvent. • A solution is homogeneous, that is that its colour, density, and other physical and chemical properties are the same in every part of the solution. • The light can pass thru it.

Can we proof these statements?

eam of light passes thru a salt solution.

No residue is left behind when a solution is filtered.

What is a Suspension? A suspension is a mixture in which small solid or liquid particles are suspended in a liquid or a gas. For example, chalk is insoluble in water. Thus, a mixture of chalk and water forms a suspension.

A suspension of powdered chalk in water.

Examples of a suspension: • 1. Chalk in water 2. 3. 4. 5.

Medicine Paint Clay in water Oil in water

Nature of suspension: • The solute do not break down into

tiny particles that mix completely and evenly with the particles of solvent as in the solution. • A suspension is non-homogeneous, that is that its colour, density, and other physical and chemical properties are not the same in every part of the solution. • The light cannot pass thru it.

Experiments that proof this statement:

Residue is left behind when a suspension is filtered.

SOLUBILITY Solubility is the maximum amount of solute which will dissolve in a given amount of solvent at a fixed temperature. The three main factors affecting the solubility of a solute in a solvent are: 2. The nature of the solute, 3. The nature of the solvent, 4. The temperature of the solutions.

The maximum amount solute which can salt (solute) that can dissolve in the glass of water (solvent).

Determining the Strength of •

If a substance is dilute or concentrated it means that the solvent contains less or more solute in it.

• If sugar is added to a 100g of water in a beaker and then stirred, it’ll be dissolved in the water. if we add more sugar and it goes not

Useful Applications The air we breathe and the water we drink are the examples of solutions and solvents that keep us alive.

In homes… • Water, as a solvent, is commonly used in homes for cooking, washing, bathing and making drinks. Tea leaves do not dissolve in water, but some of their flavours does. Glucose, coffee and other beverages are made into aqueous solutions before they are drunk. Water also dissolves detergents and many types of stains and hence, it is used for cleaning.

common solvents and solutions and

In industries…