Question

the number of mole of N2 in one litre of air containing 10% nitrogen by volume under stp ​

Answer 1

Answer:= 4.46 x 10^-3

Explanation:The volume of nitrogen in the mixture is:

10% of the mixture  =   10/100 x 1 liter

                               =    0.1 liters

Use ideal gas law to calculate the moles of the nitrogen gas.

Ideal gas law states that 1 mole of an ideal gas occupies 22.4 liters by volume.

Therefore, If 22.4 liters gives 1 mole,

                 then what will 0.1 mole give?  =  ( 0.1 x1/22.4) liters.

                              (use cross multiplication to come up with the answer)

 

                                             = 0.1/22.4

                                             

                                             = 4.46 x 10^-3