
Stoichiometry and Limiting Reactants

Interactive Video
•
Chemistry, Science, Mathematics
•
9th - 10th Grade
•
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 focus of the video tutorial?
Acid-base reactions and pH
Thermodynamics and energy changes
Chemical bonding and molecular structure
Reaction stoichiometry and limiting reactants
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is Avogadro's number?
1.602 x 10^-19
9.81 x 10^1
3.141 x 10^2
6.022 x 10^23
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving a stoichiometry problem involving two different chemicals?
Calculate the percent yield
Write the balanced chemical equation
Determine the molar mass
Identify the limiting reactant
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the practice problem, how many grams of iodine are produced from 43.3 grams of potassium iodide?
22.5 grams
33.1 grams
50.0 grams
43.3 grams
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of a balanced chemical equation in stoichiometry?
It shows the pH level of the solution
It indicates the temperature of the reaction
It determines the color of the reactants
It provides the mole ratio needed for conversions
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the percent yield if the actual yield is 22.8 grams and the theoretical yield is 46.7 grams?
50.0%
48.8%
100%
75.0%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to calculate percent yield?
(Theoretical Yield / Actual Yield) x 100
(Actual Yield / Theoretical Yield) x 100
(Theoretical Yield - Actual Yield) x 100
(Actual Yield + Theoretical Yield) / 2
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