Law of Multiple Proportion
Chemistry
Level
1
Two different compounds are formed by the elements carbon and oxygen. The first compound contains 42.9% by mass carbon and 57.1% by mass oxygen. The second compound contains 27.3% by mass carbon and 72.7% by mass oxygen.
Does this obey the law of multiple proportions?
No
Yes
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1 solution
42.9/12 (as mass of carbon is 12u ) you will get 3.5 (round off to 2 significant figures). 57.1/16 (as mass of carbon is 16 u ) you will get 3.5 (round off to 2 significant figures). you will get formula CO.
27.3/12 you will get 2.2. 72.7/16 you will get 4.5. you will get formula CO2.