17.60 g / 30.82 = 0.57
35.20g / 30.82 = 1.14 (twice as much oxygen as the first)
70.40 / 30.82 = 2.28 (4 X's as much oxygen as the first)
88.00 / 30.82 = 2.85 (5 X's as much oxygen as the first)
"the law of multiple proportions to the idea that chemical combination consists in the interaction of atoms of definite and characteristic weight"
