One molecule of nitrogen reacting with 3 molecules of hydrogen makes 2 molecules of ammonia. How many molecules of nitrogen must react with 42 molecules of hydrogen to make 28 molecules of ammonia? (Please help me set up the proportion and please explain)

Question

gudden · Answer

what is the ratio of nitrogen to that of hydrogen in a single  molecule of ammonia..?

gudden · Answer

i mean the ratio of the number of atoms

anonymous · Answer

i know how to solve it but i dont know how to set the proportions..

gudden · Answer

alright.. then..
hydrogen : nitrogen
3 :1

so.. now tell me the number of hydrogen atoms in 28 molecules of ammonia..

gudden · Answer

im just showing u half of the solution and then rest i would suggest u to try it urself... and if u won't be able to.. i would definitely help..

anonymous · Answer

i get it now...

anonymous · Answer

no need...>o< i just need to use  brain...that's all

gudden · Answer

haaha okay..:D..

anonymous · Answer

i dont get your explanation.. but its 42:3=2:28 =14

gudden · Answer

yeah...:D.

gudden · Answer

anyways... that's really great that u urself got the answer..:D