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
spacer7.5 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
spacer7.6 Molar Volume
spacerof a Gas
spacerMolar volume calculations
spacer7.7 Percent
spacerComposition
spacer7.8 Empirical
spacerFormula
spacer7.9 Empirical
spacerMass to
spacerMolecular
spacerFormula


spacerProblems
spacer1 | 2 | 3 | 4 | 5

Unit #7 CALCULATIONS BASED ON FORMULAE

Objectives

On completion of the unit you should be able to:

  1. write the number of particles in a mole.
  2. calculate the formula (or molecular) mass of compounds.
  3. solve problems involving conversions between the mass, the number of moles, the number of formula units and the volume (for gaseous substances at standard temperature and pressure).
  4. given the formula of a compound calculate the percent composition.
  5. given the composition of a compound calculate the empirical formula.
  6. given the composition and molecular mass of a molecular compound calculate the molecular formula.

 

 

 

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British Columbia Institute of Technology
Chemistry Department - 3700 Willingdon Avenue
Burnaby, B.C. Canada V5G 3H2