The correct answer is: c. N2O, N2O4, N2O5.
According to the law of multiple proportions, also referred to as Dalton's Law, when two elements form compounds, the mass ratios of the second element that combine with a specific mass of the first yield small whole number ratios.
1) For NO, the mass ratio m(N): m(O) is 14: 16, simplified to 7: 8.
2) In N₂O, the ratio m(N): m(O) equates to 2·14: 16, which simplifies to 7: 4.
3) For NO₂, the masses yield m(N): m(O) = 14: 2·16, simplifying to 7: 16.
4) In N₂O₅, the ratio is (2·14): (5·16), which simplifies to 7: 20.
5) For NO₄, the mass ratio is m(N): m(O) = 14: (4·16), which simplifies to 7: 32.
6) N₂O₄ gives a ratio of m(N): m(O) as (2·14): (4·16), simplifying to 7: 16.
A) This means m(N): m(O) = 5.6 g: 3.2 g, simplifying results in 1.75: 1, which further translates to m(N): m(O) = 7: 4.
B) Here, m(N): m(O) is 3.5 g: 8.0 g. Dividing reveals a ratio of 1: 2.285, which alters to m(N): m(O) = 7: 16.
C) Lastly, for m(N): m(O) = 1.4 g: 4.0 g, then adjustments yield a ratio of m(N): m(O) = 7: 20.
