Question #9ee2e

1 Answer
Sep 29, 2016

We know molar mass of Hydrogen is =2g/"mol"=2gmol

The amount of hydrogen given is =4.47xx10^-4g= (4.47xx10^-4g)/(2g/"mol")=4.47×104g=4.47×104g2gmol
=2.235xx10^-4mol=2.235×104mol

The equation of the reaction

N_2 + 3H_2 -> 2NH_3N2+3H22NH3

As per this equation

3 moles H_2H2 produces 2 moles NH_3NH3

So
2.235xx10^-4mol2.235×104mol H_2 will

produce 2/3xx2.235xx10^-4mol NH_323×2.235×104molNH3

=2/3xx2.235xx10^-4xx6.023xx10 ^23 " molecules "NH_3=23×2.235×104×6.023×1023 molecules NH3

~~8.97xx10^23 " molecules " NH_38.97×1023 molecules NH3