chemistry 5.2 - empirical and molecular formulae
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4 Terms
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What is the empirical formula?
The smallest whole number ratio of atoms of each element in a compound
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What is the molecular formula?
The actual number of atoms of each element in a molecule
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What do you do when the question gives the percentage amounts of each element?
You treat the percentages as the mass
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What is the equation for finding the percentage composition of element x is a compound?
((Total mass of element in compound) / (total mass of compound)) x 100
Note 
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