What is atomic mass?
Atomic Mass and Moles Review

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•
Chemistry
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The weighted average mass of an element's isotopes, measured in atomic mass units (amu).
2.
FLASHCARD QUESTION
Front
What is a mole?
Back
A unit in chemistry that represents 6.02 x 10^23 particles (atoms, molecules, etc.).
3.
FLASHCARD QUESTION
Front
How do you calculate the number of moles from atoms?
Back
Number of moles = Number of atoms / Avogadro's number (6.02 x 10^23).
4.
FLASHCARD QUESTION
Front
What is the molar mass of an element?
Back
The mass of one mole of a substance, usually expressed in grams per mole (g/mol).
5.
FLASHCARD QUESTION
Front
How do you convert moles to grams?
Back
Grams = Moles x Molar mass.
6.
FLASHCARD QUESTION
Front
What is the average atomic mass of boron?
Back
10.811 amu.
7.
FLASHCARD QUESTION
Front
How many grams are in 3.01 x 10^22 atoms of magnesium?
Back
1.22 grams.
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