
Percent Yield and Limiting Reagent
Authored by Lisa Thompson
Science
11th Grade
NGSS covered

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The limiting reactant
slows the reaction down
is used up first
is the reactant that is left over
controls the speed of the reaction
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Explain the concept of limiting reagent in relation to percent yield calculations.
Percent yield is determined by the excess reagent
Limiting reagent is used to calculate the volume of the product
The limiting reagent is crucial in determining the maximum amount of product that can be obtained and is used to calculate the percent yield.
The limiting reagent is always the most abundant reactant
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calculate the percent yield if the theoretical yield is 50g and the actual yield is 40g.
80%
75%
90%
60%
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Provide an example of an application of percent yield in real life.
Pharmaceutical manufacturing
Building a house
Baking a cake
Fishing industry
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What are some common errors students make when calculating percent yield?
Neglecting to account for temperature variations
Converting quantities to the same units, using correct theoretical yield values, and accounting for impurities are key to calculating percent yield accurately.
Using outdated equipment for measurements
Failing to consider the stoichiometry of the reaction
Tags
NGSS.HS-PS1-6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the theoretical yield of a reaction is 100g and the actual yield is 80g, what is the percent yield?
110%
80%
90%
75%
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why is it important to calculate percent yield in chemistry experiments?
Percent yield calculation is irrelevant in chemistry experiments
Percent yield calculation helps evaluate the efficiency of a reaction, identify errors, and improve future experiments.
It is unnecessary to assess the efficiency of a reaction
Errors in experiments do not impact future outcomes
Tags
NGSS.HS-PS1-7
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