Comparing mass ratios and 'proving the law of multiple proportions holds true'

[Owelode]

Compare the mass ratios of N₂O₃ and N₂O₅ and prove the law of multiple proportions holds true.


I'm having trouble understanding what the question is asking for. So far, I've done this:



N₂O₃:

N: 14g * 2 = 28g

O: 16g * 3 = 48g


N₂O₅:

N: 14g * 2 = 28g

O: 16g * 5 = 80g


28g N * 80g O = 5
48g O * 28g N = 3

I'm not sure what ratio I found or what to do with those numbers, so any help would be appreciated.

 

[Borek]

State law of multiple proportions, that will be a good starting point.