How many molecules are in 0.400 moles of #N_2O_5#?

1 Answer
Meave60
Jan 20, 2016

#"0.400 mol N"_2"O"_5"# contains #"2.41 molecules N"_2"O"_5"#.

Explanation:

#1"mole N"_2"O"_5"="6.022xx10^23"molecules N"_2"O"_5"#

To determine the number of molecules of #"N"_2"O"_5"# in the given number of moles, multiply the given moles times #6.022xx10^23"molecules/mol"#.

#0.400cancel("molN"_2"O"_5)xx(6.022xx10^23"molecules N"_2"O"_5)/(1cancel("mol N"_2"O"_5))="2.41xx10"^23 "molecules N"_2"O"_5"#

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