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Unformatted text preview: be calculated Molar mass = grams/mole = MW We need to work MW into the ideal gas law! Substitution into the ideal gas law gives: Finding Molar Mass of a Gas If the density of a gas at a given temperature and pressure is known, its molar mass can be calculated Molar mass = grams/mole = MW We need to work MW into the ideal gas law! Worked Example Example What is the density of F 2 at STP (in g/L)? Gas S+ochiometry Many chemical reactions involve gases. By assuming ideal behavior for these gases we can carry out stoichiometric calculations if the pressure, volume and temperature are known This is the same as what we have seen so far except now one of the reagents/products is a gas Worked Example Worked Example Example Your Turn Your Turn Homework Read Chapter 5 pages 1941199. Do problems: 64, 67, 69...
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 Fall '08
 FITTS
 Chemistry, Mole, molar mass

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