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Chemistry: Moles

  • Chemistry
  • Thread starter xCanx
  • Start date
45
0
The questions is arranged like this:

1.00 mol of oxygen molecules ? oxygen molecules

I know an oxygen molecule is 02, so would it be 2 oxygen molecules?

It's my first day learning moles, so I'm very lost about the 1.00 mol.
 

Answers and Replies

75
0
A mole is equal to Avogadro's number in atoms/molecules. I don't think oxygen being diatomic plays a part in this since it's asking for the number of oxygen molecules.
 
88
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1 mol of O2 x 6.0221415 × 10^23 molecules / mol = number of oxygen molecules in a mole
 
29
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just think of "moles" as a quantifying unit

in order of magnitude: (small to big)
"one", "ten", "dozen", "hundred", "thousand", "million", "billion", "moles"

1 dozen of something = 1 x 12 = 12 something
1 moles of something = 1 x 6.022 x 10^23 = 6.022 x 10^23 something
 
458
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There would be two oxygen atoms per a diatomic oxygen molecule, but O2 by itself is a molecule, not a single atom.
 

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