How do you calculate the percent yield of a reaction?
Stoichiometry Practice

Quiz
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Chemistry
•
10th Grade
•
Easy
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Percent Yield = (Actual Yield / Theoretical Yield) x 100.
Percent Yield = (Theoretical Yield / Actual Yield) x 100.
Percent Yield = Actual Yield + Theoretical Yield.
Percent Yield = (Actual Yield - Theoretical Yield) x 100.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Given the reaction CH4 + 2O2 → 2H2O + CO2, how much CO2 is produced from 35g of O2?
12.0 g
18.5 g
24.1 g
30.0 g
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the role of the periodic table in stoichiometry?
It provides atomic masses needed for calculations.
It lists all known chemical reactions.
It shows the arrangement of electrons in an atom.
It indicates the solubility of compounds.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many moles of Fe can be produced from 6 moles of H2 in the reaction Fe2O3 + 3H2 → 2Fe + 3H2O?
2 moles Fe
4 moles Fe
6 moles Fe
8 moles Fe
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the molar mass of C6H12O6?
150.12 g/mol
180.18 g/mol
200.00 g/mol
165.25 g/mol
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you find the molar mass of a compound?
Multiply the number of atoms by their atomic mass.
Add the atomic masses of all atoms in the compound.
Divide the total mass by the number of atoms.
Subtract the atomic mass of the lightest atom from the heaviest.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you convert grams to moles?
Moles = grams / molar mass.
Moles = grams x molar mass.
Moles = grams + molar mass.
Moles = grams - molar mass.
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