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17 Cards in this Set
- Front
- Back
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stoichiometry
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the study of the measurable relationships that exist in chemical formulas and reactions
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mole-to-mole problem
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when you convert moles of one substance to moles of another
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(law of conservation of matter)
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(get the moles to grams, so 2 mol X ? g/? mol)
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(major categories of stoichiometry problems)
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(mass-mass, mass-volume, volume-volume)
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mass-mass problem
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you are given the mass of one substance and are asked to find the mass of another substance in the same reaction
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mass-volume problem
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you are given the mass of one substance and asked to find the volume of another
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volume-volume problem
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you are given a volume and asked to find a volume
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(volume-volume problem)
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(number you have X the ratio of the two)
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little equation thingy
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quantity of given - convert to moles - moles of given - use molar ratio - moles of unknown - convert to desired units - quantity of unknown
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limiting reactant
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the reactant that limits the amount of product formed in a chemical reaction
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(the quantities of products formed in a reaction are always determined by the _____ of the limiting reactant)
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(quantity)
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expected yield
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the amount of a product that should be produced based on calculations
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actual yield
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the amount of a product that is really obtained from a chemical reaction
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percent yield
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what percent of the expected yield was actually obtained
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(percent yield)
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(actual yield/expected yield X 100%)
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(the coefficients in a balanced chemical equation represent the ___________ of _______ of each substance)
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(relative number, moles)
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(mole calculations can be used to verify that ___________)
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(mass is conserved in a chemical reaction)
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