Compound 1 Has a Composition of 46

question 13

Multiple Choice

Compound 1 has a composition of 46.7 mass % of element A and 53.3 mass % of element B. A and B also form a second binary compound (compound 2) . If the compositions of the two compounds are consistent with the law of multiple proportions, which of the following compositions could be that of compound 2?

• A)23.4 mass % A 76.6 mass % B
• B)30.4 mass % A 69.6 mass % B
• C)33.3 mass % A 66.7 mass % B
• D)53.3 mass % A 46.7 mass % B
• E)73.3 mass % A 26.7 mass % B

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Definitions:

Iris

The colored part of the eye surrounding the pupil, controlling light levels entering the eye by adjusting the pupil size.

Ciliary Body

A ring of tissue behind the iris of the eye, containing muscle that controls the shape of the lens for focusing and produces aqueous humor.

Hyperopia

A vision condition where distant objects are seen more clearly than near objects, often referred to as farsightedness.

Farsightedness

A common vision condition where distant objects are seen more clearly than close ones, also known as hyperopia.