Question

the number of mole of nitrogen inone lutre of air containing 10%nitrogen by volume under standard condition is

Answer 1

ANSWER:-         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.