Question

Number of atoms in 1ml of NH3 gas at stp

Answer 1

1 mole of NH3 = 6.02 x 10^23 molecules = 22.4L

No.of atoms = 4 x 6.02 x 10^23 = 22.4L = 22400ml

1ml = 4 x 6.02 x 10^23 / 22400 = 1.075 x 10^20 atoms