

Calculating Molar Mass: Essential Steps and Techniques
Interactive Video
•
Chemistry
•
6th - 10th Grade
•
Practice Problem
•
Medium
Aiden Montgomery
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is another term for molar mass?
Atomic number
Molecular weight
Electron mass
Avogadro's number
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where can you find the atomic mass of an element?
Above the element symbol
Next to the element name
Below the element symbol
On the back of the periodic table
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the molar mass of CO?
Divide the atomic mass of carbon by oxygen
Subtract the atomic mass of oxygen from carbon
Multiply the atomic masses of carbon and oxygen
Add the atomic masses of carbon and oxygen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of H2O?
14.01 g/mol
18.02 g/mol
20.02 g/mol
16.00 g/mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the molar mass of NH3?
Add the atomic masses of nitrogen and hydrogen
Subtract the atomic mass of hydrogen from nitrogen
Add the atomic mass of nitrogen to three times the atomic mass of hydrogen
Multiply the atomic masses of nitrogen and hydrogen
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic mass of nitrogen used in the calculation for NH3?
12.01
1.01
14.01
16.00
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you handle parentheses in chemical formulas when calculating molar mass?
Ignore the parentheses
Multiply the atomic masses inside the parentheses by the subscript outside
Add the atomic masses inside the parentheses
Divide the atomic masses inside the parentheses by the subscript outside
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