Question

Mass of 2*10^10 molecules of nitrogen gas

Answer 1

Answer:

Explanation:

N2 GAS MOLECULAR MASS=2*14

                                               = 28 G

                                               = 1 MOLE

WE KNOW THAT 1 MOLE(28 G )CONTAIN = 6.02*10²³MOLECULES

MASS OF N2 CONTAINING 2*10^10 MOLECULES= 28*2*10^10

                                                                                     ------------------

                                                                                      6.02*10²³

MASS OF N2 =9.30*10^-13 G .

HOPE THIS HELPS.

Answer 2

Answer:

2×10^10 molecules of nitrogen gas?

Explanation:

Molecular mass=2×14

=28g

SO, 28g=1mole

and 1mole=6.02×10^23

Molar Mass of n2=2×10^10

molecules=28×2×10^10

no.of mass=9.30×10^-13