Atoms Moles Grams Molecules Moles Grams

The. is the chemical unit for the amount of a substance. One mole (1 mol) contains 6.022 x 1023 entities, which is known as . • Entities means. ,. or . • We use ...
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CONCEPT: MASS CONVERSIONS The _______________ is the chemical unit for the amount of a substance. One mole (1 mol) contains 6.022 x 1023 entities, which is known as _________________________________________. •

Entities means ______________________ , ______________________ or ______________________.



We use ______________________ when dealing with a single, individual element.



We use _________________ or _________________when dealing with more than one element or a compound. 6.022 x 1023 atoms of Fe

is equal to

Atoms

1 mole of Fe

and has a mass of

Moles

55.85 amu

Grams

EXAMPLE: Determine the mass (in grams) found in 7.28 x 1028 nitrogen atoms.

6.022 x 1023 molecules of H2O is equal to

Molecules

1 mole of H2O and has a mass of

Moles

EXAMPLE: Determine how many molecules of carbon dioxide, CO2, are found in 75.0 g CO2.

18.016 amu

Grams