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16 Cards in this Set
- Front
- Back
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stoichiometry is-
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study of the quantitative relationships
in chemical formulas and equations. |
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atomic mass is-
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weighted average mass of an atom,
found on the periodic table |
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formula mass is-
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sum of the atomic masses of the
atoms in a formula |
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molecular mass is-
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sum of the atomic masses of the
atoms in a molecular formula |
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gram molecular mass is-
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molecular mass written in grams
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molar mass is-
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same as gram molecular mass
(molecular mass written in grams) |
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empirical formula is-
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formula reduced to lowest terms
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formula or molecular mass is found by?
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summing
the atomic masses (on the periodic table) of each atom in a formula. |
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what is a mol?
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6.02 x 10 to the 23rd
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percentage composition is-
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what portion (by mass)
of a substance is made up of each element. |
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how do you find the percentage yield of a product?
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actual yield divided by theoretical yield x100
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concentration is often expressed as..?
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moles of solute over liters of solution
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what is the charge of protons, neutrons, and electrons?
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protons: +1
neutron: +0 electron: -1 |
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combined gas law:
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P1V1 over T1 = P2V2 over T2
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ideal gas law:
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PV=nRT
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defintion of ph:
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-log [H30] = -log [H]
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