15
QuizMultiple Choice

The Historical Development of Atomic Theory — Unit test

Question 15 • SVHS Chemistry 1 $FA

Which statement best explains the purpose of using a mole in the measurement of matter?

Answer
A
It is commonly used as another unit of mass.
B
It allows chemists to deal with a large number of atoms.
C
It is used only for studying the properties of gases.
D
It explains that substances with the same moles have the same mass.

Explanation

A mole is a counting unit equal to about 6.02 × 10²³ particles. It lets chemists count and work with the enormous numbers of atoms and molecules found in samples of matter. A mole is not another unit of mass, and equal amounts in moles do not necessarily have equal masses.

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