Mole concept
Flashcard
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Ng ching
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7 questions
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1.
FLASHCARD QUESTION
Front
What is relative atomic mass (Ar)?
Back
The relative mass of an atom (Ar) is the average mass of one atom of that element relative to 1/12 of the mass of one carbon-12 atom
2.
FLASHCARD QUESTION
Front
What is relative molecular mass (Mr)?
Back
The relative molecular mass (Mr) of a molecular substance is the average mass of one molecule relative to 1/12 of the mass of one carbon-12 atom
3.
FLASHCARD QUESTION
Front
What is relative formula mass (Mr)?
Back
The relative formula mass (Mr) of an ionic compound is the average mass of one unit of that compound compared to 1/12 of the mass of one carbon-12 atom
4.
FLASHCARD QUESTION
Front
What is a mole (mol)?
Back
There are 6.02 × 1023 particles in 1 mol of a substance
5.
FLASHCARD QUESTION
Front
What is the unit of Ar and Mr?
Back
Ar and Mr have NO UNITS
6.
FLASHCARD QUESTION
Front
Formulas
Back
7.
FLASHCARD QUESTION
Front
What is the unit of molar mass?
Back
g/mol
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