If you wanted to make 8.3 x 10^23 molecules of ammonia, how many molecules of starting material would you need of each reactant. H2 and N2

Question

i don't understand how to do this problem and it's due soon!! please help

Answer 1

You ALWAYS should begin with a balanced equation:

N₂ + 3H₂ ==> 2NH₃

8.3x10²³ molecules NH₃ x 1 molec N₂/2 molec NH₃ =

4.25x10²³ molecules of N₂

8.3x10²³ molec NH₃ x 3 molec H₂/2molec NH₃ =

1.2x10²⁴ molecules of H₂ needed