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15 Cards in this Set
- Front
- Back
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[GEM]
Gram Equivalent Weight |
GEM = Molar Mass / n
n = # of hydrogens or hydroxl groups per molecule |
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Percent Composition
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% Comp =
Mass of X in Formula / Formula Weight of Compound x 100% |
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Percent Yield
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Percent Yield =
actual yield / theoretical yield x 100% |
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Mole
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Mole =
weight of sample (g) / Molar Weight (g/mol) |
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Avogadro's Number
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6.022E23
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Molecular Weight
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sum of the atomic weights (in amu) of atoms in a molecule
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Empirical Formula
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gives the SIMPLEST whole number ratio of elements in a compound
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Molecular Formula
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gives the EXACT number of atoms of each element in the compound
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Combination Reaction
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reaction in which two or more reactants form one product
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Decomposition Reaction
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reaction in which a compound breaks down into two or more substances
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Single Displacement Reaction
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reaction that occurs when an atom of one compound is replaced by an atom of another element
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Double Displacement Reaction
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reaction in which elements from two different compounds displace each other to form two new compounds
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compound
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pure substance that is composed of two or more elements in a fixed proportion
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molecule
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combination of two or more atoms held together by covalent bonds
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Equivalents
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equivalents =
weight of compound / gram equivalent weight |
