Question

the number of moles of nitrogen in one litre of air containing 10 percent n2 by volume , under standard conditions is ​

Answer 1

at STP 22.4 litre of nitrogen=1 mole

as the total volume of solution is= 1L

So for 10% nitrogen volume will be= 0.1L

as 22.4L=1mole

1L= 1/22.4 mole

therefore, in 0.1L= (1/22.4)x0.1=0.0044 mole.