
Moles and Avogadro's Number Concepts

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Lucas Foster
FREE Resource
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial quantity of moles of helium used in the problem setup?
1.0 moles
1.5 moles
0.7 moles
0.5 moles
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When converting moles to atoms, which constant is used for multiplication?
Planck's constant
22.4
Avogadro's number
Molar mass
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Avogadro's number approximately equal to?
6.02 x 10^23
3.14
1.6 x 10^-19
9.81
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the mnemonic mentioned in the video?
To remember the periodic table
To convert moles to different units
To calculate speed
To measure temperature
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the calculation, what happens to the units of moles when multiplied by Avogadro's number?
They double
They convert to grams
They cancel out
They remain unchanged
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final result of converting 0.7 moles of helium to atoms?
1.2 x 10^23 atoms
6.02 x 10^23 atoms
3.5 x 10^23 atoms
4.2 x 10^23 atoms
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which step confirms that the conversion from moles to atoms was done correctly?
Verifying the units cancel out
Using a different constant
Checking the initial moles
Recalculating the molar mass
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