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12 stoichiometry vocabulary review

Terms in this set (20)

Reactants
The starting materials in a chemical reaction
Mole Ratio
A conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles
Theoretical Yield
The maximum amount of product that could be formed in a reaction
Mole
The amount of a substance that contains 6.02 x 10^23 representative particles of that substance
Limiting Reagent
The substance completely used up in a chemical reaction
Percent Yield
The ratio of how much product is produced compared to how much is expected, expressed as a percentage
Stoichiometry
The calculations of quantities in a chemical reaction
Actual Yield
The actual amount of product in a chemical reaction
Excess Reagent
The substance left over after a reaction takes place
Mass to Mass Calculation
A stoichiometric computation in which the mass of the products is determined from the given mass of reactants
6.02 x 10^23
Avagadro's number
product
a substance formed in a chemical reaction
coefficient
gives the relative number of molecules involved in a reaction
0 degrees Celsius, 101.3 kPa
STP
mole ratios
the coefficients from the balanced equations are used to write conversion factors called this
limiting reagent
the reactant that determines the amount of product that can be formed in a reaction
actual yield
the amount of product actually formed when a reaction is carried out in the laboratory
theoretical yield
the maximum amount of product that can be formed during a reaction
percent yield
the ration of the actual yield to the theoretical yield x100
excess reagent
the reactant that is not completely used up in a reaction
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