WEEK: 1 TERM: 2ND SESSION: 2023/2024
SUBJECT: CHEMISTRY TOPIC: INTRODUCTION TO MOLE
CONCEPT
CLASS: YEAR 10 DATE: 8/1/24 - 12/1/24 LESSON No.: 1
LEARNING OBJECTIVES: At the end of the
lesson, the students should be able to:
I. Define mole
II. Understand Avogadro’s number and the mole
concepts
III. Perform simple calculations involving number
of moles, molar masses and molar volumes of
gases
STUDY QUESTIONS:
What are the units of measurement you know?
List them.
KEY WORDS:
Mole, Molar mass, Avogadro’s
number, Atoms, Molecules,
Particles
PREVIOUS LEARNING :
Students have studied
separation techniques and
understand the principle behind
the used of each separation
technique.
LEARNING ACTIVITIES/CLASSROOM ORGANISATION:
STEP 1: - The Teacher asks the students to calculate the molar masses of
NaOH, KOH
STEP 2: Using a beam balance, the teacher weighs 1 mole of the above
substances, introduces the lesson and describes the mole as amount of a
substance.
STEP 3: - The teacher explains Avogadro’s number, performs simple
calculations involving moles and leads the students to do same
STEP 4: - Students do some exercises as given by the teacher
STEP 5: - The teacher explains the concept of molar volume of gases and
does some classwork with the students .
DIFFERENTIATION:
Level 1: All students should be able to review step 1
Level 2 : Most students should be able to review steps 1, 2 and 3
Level 3: Some students should be able to review step 4
IT:
BBC Bitesize:
The Mole
EVALUATION FOR LESSON TAUGHT:
a. What is the number of molecules in 6.4g of SO2 (NA = 6.02 X 1023)?
b. What is the volume in cm3 of 2.2g of CO2 at s.t.p ( C=12, O=16)?
c. Determine the percentage by mass of oxygen in Al2(SO4).2H2O.( Al=27,
S=32, O=16, H=1)
d.
RESOURCES:
Cambridge IGCSE
Chemistry 2nd Edition by
KEY SKILLS:
Analytical, Problem
Solving
HOMEWORK:
Standout Chemistry Workbook
For Senior Secondary 1
