Summary for Week 4

MW & F, September 24, 26 and 28, 2007

Reading:

For this week: Finish Chapter 3 in BLB

Quiz 2 on Friday, September 28

A look ahead: BLB Chapter 4

Prelim over Chapters 1-3 on Wednesday, October 3 during your review session time

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

OWL Assignment for Week 4:

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

Chapter 3 assignment on stoichiometry and mole relationships: due October 3, 2007

Homework problems:

Beginning of Chapter 3: 3, 5, 7, 9, 12, 17, 19, 20, 27, 30, 33
End of Chapter 3: 41, 44, 47, 51, 53, 55, 57, 59, 62, 69, 70, 86, 96

Key concepts:

Beginning of Chapter 3

chemical reaction equations and balancing

some specific patterns of reactivity:

complete combustion of hydrocarbons or alcohols

decomposition reactions

alkali metals or alkaline earth metals in water

Video of alkali metals in water

stoichiometry

atomic and molecular weights

percentage composition by mass

amount of stuff: weighing and counting

the mole concept

End of Chapter 3

empirical formula and elemental analysis
empirical formula & molecular formula

combustion reactions

combustion analysis

quantitative use of balanced equations

Handout on empirical formula from combustion analysis

limiting reactant

theoretical yield & percent yield

Back to Course Page

Back to Syllabus