(©2007, François G. Amar, All rights reserved)  

Chemistry 121 (Amar) -- Introduction to Chemistry

Dr. François Amar's Section

(MWF 11AM ) 

Summary for Week 3 

Reading:

For this week: BLB Chapter 2.6-2.9; start of Chapter 3

A look ahead: BLB Chapter 3  

Homework problems:

Chapter 2: 30, 35, 37, 39, 42, 46, 48, 52, 55, 57, 63, 66, 96

Chapter 3: 3, 5, 7, 9, 12, 17, 19, 20, 27, 30, 33

OWL Assignment for Week 3:

Chapter 3 assignment on ionic compounds and naming: due September 27, 2007

Key concepts:

End of chapter 2:

molecular compounds

ions and ionic compounds

atomic ions: the common charge states

naming ionic compounds

cations and anions (positive and negative ions)

acids and their names

naming molecular compounds

naming simple organic compounds

Into Chapter 3

chemical reaction equations and balancing

stoichiometry

atomic and molecular weights

percentage composition by mass

amount of stuff: weighing and counting

the mole concept 

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