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Chem > Amt of Substance > Flashcards

Amt of Substance Flashcards

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1
Q

Ar definition

A

The mass of one atom of an element relative to 1/12 the mass of a carbon-12 atom

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2
Q

Mr definition

A

The mass of one molecule of a compound, relative to 1/12 the mass of a carbon-12 atom

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3
Q

The Avogadro constant + why it is used

A

6.022x10 23

Find the number of particles present in a sample of known mass

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4
Q

Number of particles =

A

Avogadros constant x moles

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Chem (2 decks)

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