How many atoms are in #"4.65 mol C"#?

1 Answer
Meave60
Oct 27, 2014

There are #2.80xx10^24# #"atoms C"# in #"4.65 mol"#.

Explanation:

One mole of an element has #6.022xx10^23"# atoms of that element. In order to determine how many atoms are in #"4.65 mole C"#, you need to multiply #"4.65 mol C"# by #(6.022xx"10"^23"atoms")/(1"mol")#.

#4.65color(red)cancel(color(black)("mol C"))xx(6.022xx"10"^23"atoms")/(1color(red)cancel(color(black)("mol")))=2.80xx"10"^24" atoms C"# (rounded to three significant figures)

Moles cancel, leaving atoms.

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