Term
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Definition
ratios that represent the relative
number of molecules, atoms, or formula units in a chemical equation
that are needed to maintain the law of conservation of matter. |
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Term
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Definition
Also called conversion factors, are the ratios created
from the coefficients in the balanced chemical equation. |
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Term
Steps for Calculating the Masses of Reactants and Products in
Chemical Reactions |
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Definition
· Balance the equation for the reaction.
· Convert the masses of reactants or products to moles.
· Use the balanced equation to set up the appropriate mole ratio(s).
· Use the mole ratio(s) to calculate the number of moles of the
desired reactant or product.
· Convert from moles back to masses. |
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Term
BCA Tables: Tables that are used to help organize stoichiometry
problems. |
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Definition
· Only moles can go into the BCA Table
· Helps Visualize ratio |
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Term
| Limiting Reagent (Reactant) |
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Definition
The reactant that limits the amount
of products that can be formed. It is used up first. |
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Term
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Definition
The reactant(s) that is/are present after
the limiting reagent is used up. |
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Term
Steps of Solving Stoichiometry Problems Involving Limiting
Reactants. |
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Definition
· Write and balance the equation for the reaction.
· Convert known masses of reactants or products to moles.
· Using the numbers of moles of reactants or products and the
appropriate mole ratios, determine which reactant is limiting.
· Using the amount of the limiting reactant and the appropriate
mole ratios, compute the number of moles of the desired
product.
· Convert from moles of product to grams of product, using the
molar mass (if this is required by the problem. |
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Term
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Definition
| (Actually Yield / Theoretical Yield) x 100 |
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