1. Name ______________________________________
Chapter 10 Study Guide
• What is a mole?
• Know how to determine the number of any type of atom in a molecule?
Ex.) How many hydrogen atoms in CH4CH2OH
• Describe how you find the molar mass of a compound.
Ex.) Find the molar mass of C3H8
• Describe how to calculate the amount of grams in a given amount of moles.
Ex.)
• Describe how you find the amount of moles there are in a given number of grams?
Ex.) How many moles are there in 7.23 g of NaOH?
• Describe how you would find the mass for one molecule of a given substance.
Ex.)
• How do you find the number of molecules in a given amount of moles?
Ex.)
• How do you find the number of molecules in a given amount of grams?
Ex.)
• What is STP? What volume does one mole of gas at STP occupy?
• Describe how you would calculate the volume of gas present in a given amount of
moles of gas at STP.
Ex.)
• Describe how you would calculate the number of moles present in a given volume of
gas at STP.
Ex.)
• Describe how you would calculate the volume of a given mass of gas at STP.
Ex.)
• How do you find the density of a gas at STP?
Ex.)

2. • Describe how you would calculate the percent composition of each component of a
compound?
Ex.)
• What is an empirical formula? Know how to write empirical formulas from molecular
formulas if possible.
• What is a molecular formula?
• Describe how you can calculate the empirical formula of a compound based on its
percent composition.
Ex.)
• Describe how you could calculate the molecular formula based on its empirical
formula.