Which of the following is an example of the law of multiple proportions?
A) A sample of chlorine is found to contain three times as much Cl-35 as Cl-37.
B) Two different compounds formed from carbon and oxygen have the following mass ratios: 1.33 g O: 1 g C and 2.66 g O: 1 g C.
C) Two different samples of table salt are found to have the same ratio of sodium to chlorine.
D) The atomic mass of bromine is found to be 79.90 amu.
E) Nitrogen dioxide always has a mass ratio of 2.28 g O: 1 g N.

Question

Quizplus · Accepted Answer

The law of multiple proportions states that when two elements form more than one compound, the mass ratios of one element that combine with a fixed mass of the other element will be ratios of small whole numbers. Choice B shows two different compounds formed from carbon and oxygen with mass ratios that are small whole number ratios of 1:1.33 and 1:2.66, respectively, satisfying the law of multiple proportions. The other choices do not demonstrate this law.

Which of the Following Is an Example of the Law