GCSE OCR Chemistry - the Mole

GCSE Chemistry revision of The Mole

  • Created by: harry
  • Created on: 12-04-13 10:38
What is a mole?
A mole is exactly the number of atoms of an element that will have a mass in grams which is the same as that of the relative atomic mass of that element
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What is Ar?
Relative atomic mass
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What is Mr?
Relative formula mass
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What is molar mass?
The mass of one mole
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What is molar mass measured in?
g/mol (grams per mole)
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What is the formula for calculating the number of moles in a given mass?
Number of moles= Mass in g/Mr
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What is the relative atomic mass of an element?
The relative atomic mass is the mass of an element compared to 1/12th of an atom of Carbon-12
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Other cards in this set

Card 2

Front

What is Ar?

Back

Relative atomic mass

Card 3

Front

What is Mr?

Back

Preview of the front of card 3

Card 4

Front

What is molar mass?

Back

Preview of the front of card 4

Card 5

Front

What is molar mass measured in?

Back

Preview of the front of card 5
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