
Molar Mass and Conversion Problems
Interactive Video
•
Chemistry, Science, Mathematics
•
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 Avogadro's number used for in chemistry?
To calculate the density of a substance
To determine the volume of a gas
To convert between atoms and moles
To measure the mass of an atom
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you convert moles to mass?
By using the volume of the substance
By using the density of the substance
By using the molar mass from the periodic table
By using the atomic number
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example problem, what is the first step to find the mass of copper atoms?
Convert mass to volume
Convert atoms to moles using Avogadro's number
Convert mass to atoms directly
Convert moles to atoms using molar mass
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of copper used in the example problem?
58.44 grams
63.546 grams
60.02 grams
75.32 grams
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the gold example, what is the starting point for the conversion?
Moles of gold
Mass of gold
Volume of gold
Atoms of gold
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of gold used in the example problem?
180.95 grams
200.59 grams
210.98 grams
196.967 grams
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to label units in conversion problems?
To ensure units cancel correctly and follow the mole map
To make the problem look neat
To avoid using a calculator
To ensure the correct chemical reaction
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