

Theoretical Yield and Percent Yield
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of calculating percent yield in a chemical reaction?
To calculate the cost of reactants
To measure the temperature change during the reaction
To compare the actual product obtained with the theoretical prediction
To determine the speed of the reaction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes the 'actual yield' in a chemical reaction?
The amount of reactant used in the reaction
The amount of product predicted by theory
The amount of product actually obtained from the experiment
The total mass of all reactants
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example problem, what is the first step in determining the theoretical yield of hydrogen?
Calculating the percent yield
Measuring the temperature of the reaction
Balancing the chemical equation
Determining the cost of reactants
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of balancing the chemical equation in the context of this problem?
It helps in determining the speed of the reaction
It ensures the correct stoichiometric ratios are used
It is necessary for measuring temperature changes
It is required for calculating the cost of reactants
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't grams be directly used in a BCA table for stoichiometry calculations?
Because grams are not a unit of time
Because grams do not indicate the number of particles
Because grams are not a unit of volume
Because grams are not a unit of temperature
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of hydrogen gas (H2) used in the calculations?
1 gram per mole
3 grams per mole
2 grams per mole
4 grams per mole
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ratio of aluminum to hydrogen in the balanced chemical equation used in the example?
1:1
2:3
3:2
1:2
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