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

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Answer 1 · 2016-01-20T06:15:38

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

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

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

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

How many molecules are in 0.400 moles of N_2O_5N_2O_5?