Why is it challenging to count the number of atoms in a material?

Mole Concept and Calculations

Interactive Video
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Chemistry
•
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
Materials contain a vast number of atoms.
Atoms are not countable.
Atoms are constantly moving.
Atoms are too small to see.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a mole in chemistry?
A type of chemical reaction.
A unit of mass.
A unit of volume.
A specific number of atoms or molecules.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms are in one mole?
1 x 10^19 atoms
300 million atoms
6.022 x 10^23 atoms
12 atoms
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between AMU and grams for one mole of an element?
1 AMU equals 1 mole
1 gram equals 1 mole per AMU
1 mole equals 1 gram per AMU
1 AMU equals 1 gram
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many grams does one mole of aluminum weigh?
47.88 grams
197 grams
26.98 grams
12 grams
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass of one mole of potassium in grams?
65.39 grams
39.10 grams
197 grams
26.98 grams
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you convert grams to moles for a given element?
Divide grams by the atomic mass.
Multiply grams by the atomic mass.
Multiply grams by Avogadro's number.
Divide grams by Avogadro's number.
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