How many moles of N are in 0.223 g of N2O

There are twice the molar quantity of nitrogen atoms in nitrous oxide, i. e.

1*10-2⋅mol

Moles of nitrous oxide

=

0.217

⋅

g

44.013

⋅

g

⋅

m

o

l

-

1

=

5

*

10

-

3

⋅

m

o

l

.

Given the composition of

N

2

O

, there are this

2

*

5

*

10

-

3

⋅

m

o

l

of nitrogen atoms.