Unit #1Unit #2Unit #3Unit #4Unit #5Unit #6Unit #7Unit #8Unit #9Unit #10
spacerUNIT # 7  
spacerspacerIntroduction
spacerspacerObjectives
spacerspacerReading

spacer7.1 Calculation of
spacerFormula
spacerMass

spacer7.2 Mole
spacerConcept

spacer7.3 Atomic Mass
spacerRevisited

spacer7.4 Calculation of
spacerMolar Mass
spacer
7.5 Calculations
spacerinvolving
spacerAvogadro #

spacerMass to mole conversion and vice-versa
spacermole to number of particles conversion and vice-versa
spacerMass in grams to number of particles conversion
spacer
7.6 Molar Volume
spacerof a Gas
spacerMolar volume calculations
spacer
7.7 Percent
spacerComposition
spacer
7.8 Empirical
spacerFormula

spacer7.9 Empirical
spacerMass to
spacerMolecular
spacerFormula



spacerProblems
spacer1 | 2
| 3 | 4 | 5
Unit # 7 - Calculations Based on Formulas
Molar Volume Calculations

(a) What is the volume of 0.400 g of hydrogen gas at STP?
(b) How many grams of CO2 are in a 10.0-L bottle of the gas at STP?
(c) How many moles of Nitrogen gas can fill a 4.0-L balloon atSTP?
(d) Would your answer to (c) be any different if the gas is Argon?
(e) Determine the density of oxygen gas at STP?
(f) Would your answer to (e) be any different if the gas is Argon?

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