Empirical Formula Review - mscucinato by hcj

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									Empirical Formula Review
Calculate the empirical formula of a compound that, on
analysis, is found to contain 2.2% hydrogen, 26.7% carbon,
and 71.1% oxygen.
Element   Mass     Molar     Number of Ratio     Empirical
                   Mass      moles               formula
The percentage composition of a compound is
35.9% aluminum and 64.1% sulfur. What is the
empirical formula of the compound?
Element   Mass   Molar   Number of Ratio   Empirical
                 Mass    moles             formula
             Answers
• 1. HCO2
• 2. Al2S3

								
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