How many moles of #NO_2# are there in #1.81 * 10^24# molecules of #NO_2#?

1 Answer
Slangus
Nov 22, 2015

3.00 moles

Explanation:

In finding the amount of moles there are, you first have to know what the mole is and what it represents. Avogadro's number is #6.022#x#10^23#. That number can represent anything; in chemistry it often stands for atoms or molecules. In this question it represents molecules.

#1.81#x#10^24 "molecules"# ##X## #1mol#/#6.022#x#10^23"molecules"# = #3.00 mol#

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