Question

calculate the number of moles in 34 games of Nh

Answer 1

molecular mass of NH₃ = 14 + 3 = 17 u

No. of moles =     given mass

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

                          molecular mass

=> given mass = 34 u

=> molecular mass = 17 u

=> moles = 34 / 17

=> 2 MOLES