Question

the number of mole of nitrogen in one litre of air containing 10% nitrogen by volume , under standard condition is
1) 0.03 mole
2) 2.10 mole
3) 0.186 mole
4)4.46 * 1/10 mole​

Answer 1

as in STP 1 mole of air is 22.4 litre

so using formula

the answer is 4.46 x 10^-3

Answer 2

Answer: 1000ml. 100per

X= 10per

10x1000/100=100ml

Explanation:

At stp 1mole. 22400ml

100ml. ?

100/22400=0.00446 moles

4.46 *10-3