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Slide 1 of 36
© Copyright Pearson Prentice Hall
Limiting Reagent and Percent Yield > Limiting and Excess Reagents
In a chemical reaction, an _____________
quantity of any of the reactants will _____ the
amount of product that forms.
The ___________ ___________________ is
the reagent that determines the amount of
product that can be formed by a reaction.
(the one that __________ ______ ______)
12.3
Slide 2 of 36
© Copyright Pearson Prentice Hall
Limiting Reagent and Percent Yield > Limiting and Excess Reagents
12.3
The Chemical Equation for the Preparation of Ammonia
Slide 3 of 36
© Copyright Pearson Prentice Hall
Limiting Reagent and Percent Yield > Limiting and Excess Reagents
In the reaction of nitrogen and hydrogen,
hydrogen is the limiting reagent. Nitrogen is
the reagent that is not completely used up in
the reaction. The reagent that is not used up
is called the ___________ ________.
12.3
© Copyright Pearson Prentice Hall
SAMPLE PROBLEM
Slide 4 of 36
12.7
© Copyright Pearson Prentice Hall
Slide 5 of 36
Practice Problems for Sample Problem 12.7
© Copyright Pearson Prentice Hall
SAMPLE PROBLEM
Slide 6 of 36
12.8
© Copyright Pearson Prentice Hall
Slide 7 of 36
Practice Problems for Sample Problem 12.8
Slide 8 of 36
© Copyright Pearson Prentice Hall
Limiting Reagent and Percent Yield > Percent Yield
The percent yield is a measure of the
_______________ of a ________________
carried out in the laboratory.
12.3
Slide 9 of 36
© Copyright Pearson Prentice Hall
Limiting Reagent and Percent Yield > Percent Yield
• The _______________ yield is the
_____________ amount of product that could
be formed from given amounts of reactants.
• In contrast, the amount of product that
actually forms when the reaction is carried out
in the laboratory is called the
______________ yield.
12.3
Slide 10 of 36
© Copyright Pearson Prentice Hall
Limiting Reagent and Percent Yield > Percent Yield
The ________________ yield is the
_______________ of the actual yield to the
theoretical yield expressed as a percent.
12.3
© Copyright Pearson Prentice Hall
SAMPLE PROBLEM
Slide 11 of 36
12.9
© Copyright Pearson Prentice Hall
Slide 12 of 36
Practice Problems for Sample Problem 12.9
© Copyright Pearson Prentice Hall
SAMPLE PROBLEM
Slide 13 of 36
12.10
© Copyright Pearson Prentice Hall
Slide 14 of 36
Practice Problems for Sample Problem 12.10