Acids, Bases And Salts

LESSON PLAN PREPARED BY :

TABBASUM FATMA

LESSON PLAN

• Subject: Chemistry• Class: X• Class size: 45• Teaching Periods: 10• Assessment Periods:• Topic: Acids, Bases and Salts• Previous Knowledge: Properties of acids and bases

INTRODUCTIONMajor Concepts:

Concepts of acids and basepH scaleSalts

What you will learn?

• Which substances are called acids or bases?• How are they classified?• What happened when an acid reacts

with a base?• Why do we use lemon juice on fish?• What do we mean by the pH of a

solution?

You use acids as:• Vinegar• Aspirine• Lemon juice• Cola drinks• Apples• Tomatoes etc.

You use bases as

• Drain cleaner• Bleach• Antacid medicines• Baking powder• Washing soda• Shaving cream• Tooth pastes

Harmful effect of acids

• Acid rain can damage trees• Acids rain washes out aluminum ion• Aluminum ion is very toxic to fish and

other aquatic life• Acid rain can damage building and statues• Oxides of Sulphur and Nitrogen are

produced by smoking• Smokers are at great risk of suffering from

cold, bronchitis and aasthama

Properties of acids and basesS. No Property Acid Base

1 Taste Sour Bitter

2 Effect on blue litmus Turns red No effect

3 Effect on red litmus No effect Turns blue

4 Effect on skin Corrosive Harm skin tissue

5 Electrical conductivity Aqueous solutions conduct electricity

Aqueous solutions conduct electricity

Some Common AcidsName Formula Common use

Hydrochloric acid HCl Cleaning of metals, bricks and removing scale from boilers

Nitric acid HNO3 Manufacture of fertilizers, explosives

Sulphuric acid H2SO4 Manufacture of many chemicals, drugs,paints and explosives.

Phosphoric acid H3PO4 Manufacture of fertilizers

Some Common BasesName Formula Common Use

Sodium hydroxide NaOH Soap making, drain cleaner

Potassium hydroxide KOH Making liquid soap, shaving cream

Calcium hydroxide Ca(OH)2 Making mortar, plasters , cement

Magnesium hydroxide Mg(OH)2 Antacid , laxative

Thank You