Unit 1.3: Elemental Composition of Pure Substances
Determine the empirical formula of a compound given data.
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A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen by
mass. Find its empirical formula.
Apply the Law of Definite Proportions to determine the ratio of atoms in
a compound when given mass amounts.
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If a 36 g sample of water contains 32 g oxygen and 4 g hydrogen, what
is the ratio of O to H atoms?
Determine the measurements/steps needed to determine the formula of a
compound in the lab (gravimetric analysis).
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What experimental measurements are required to determine the empirical
formula of magnesium oxide?