Name ______________________________________
Topic: Chemical Quantities
Key Learning(s):
The mole is used to convert between mass. Percent
composition can be used to identify a compounds empirical and
molecular formulas.
Unit Essential Question(s):
What information can be derived from the chemical formula
of a compound?
Concept 1:
Mass Conversions
3.2.C.A.2: Use the mole concept to
determine number of particles and
molar mass for elements and
compounds.

Lesson Essential Questions:
How do you calculate molar mass?
Vocabulary:
1. Mole
2. Molar Mass
Period _______
Subject: Chemistry
Grade(s): 10, 11, & 12
Instructional Tools:
PH chapter 10
Graphic Organizers
Worksheets
Lab
Concept 2:
Percent Composition
3.2.C.A.2: Determine percent
compositions, empirical formulas, and
molecular formulas.
Concept 3:
Empirical & Molecular Formulas
3.2.C.A.2: Determine percent
compositions, empirical formulas,
and molecular formulas.
Lesson Essential Questions:
 How do you calculate percent by
mass of an element in a
compound?
Lesson Essential Questions:
 What is the difference
between empirical and
molecular formulas and how
can they be determined?
Vocabulary:
3. Percent Composition
Vocabulary:
4. Empirical Formula
5. Molecular Formula
Name ______________________________________
Period _______