Moles and Molar Mass

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What are moles?
The amount of substance in a chemical rection
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What is the mass of one mole equal to?
The relative formula mass
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What is the formula for the number of moles of an element or compund?
Number of moles= Mass/Molar Mass
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During a chemical reaction does it gain or lose mass or stay the same?
Stays the same
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The mass measured at the end of a reactions may be...
1. Greater if a gas has been gained from air or 2. Less if water vapour or a gas has been allowed to escape
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What is the molar mass of carbon dioxide (CO2)?
44g/mol
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Other cards in this set

Card 2

Front

What is the mass of one mole equal to?

Back

The relative formula mass

Card 3

Front

What is the formula for the number of moles of an element or compund?

Back

Preview of the front of card 3

Card 4

Front

During a chemical reaction does it gain or lose mass or stay the same?

Back

Preview of the front of card 4

Card 5

Front

The mass measured at the end of a reactions may be...

Back

Preview of the front of card 5
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