Exam 3 Study Guide: What Concepts/Math Are Most Important?
Old Stuff That You Should Never Forget!
• Be able to solve dimensional analysis problems (mostly metric conversions and stoichiometry)
• Be able to perform density calculations to solve for density, or mass, or volume (d = m/V): memorize equation
• Know what ions are, how they are formed, and how to calculate the charge on an ion, or how to calculate how many
electrons have been gained or lost.
• Be able to recognize common acids.
• Be able to name ionic compounds, acids, and simple binary molecular compounds.
• Be able to write the formula for ionic compounds, acids, and simple binary molecular compounds.
• Be able to balance equations and write net ionic equations (and convert word equations to formula equations).
Ch 9: Gases
• Know the Kinetic/Molecular Theory of Gases.
• Given conversion factors, be able to convert between pressure units. (Remember 1 atm =765 torr = 101.3 kPa)
• Be able to interpret a monometer like the one on p. 344: which side has the higher pressure?
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 Fall '06
 Dr.Samples
 Stoichiometry, 101.3 kPa, Hfus

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