Multiple Choice
The number of carbon atoms in exactly 12 g of pure carbon-12 is called a:
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2. Atoms & Elements
Mole Concept
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In chemistry, what does one mole represent?
A
The number of electrons in one neutral atom of an element
B
A quantity containing exactly specified entities (such as atoms, molecules, or ions)
C
The volume occupied by any gas at room temperature and pressure
D
The mass in grams of exactly one atom of an element
Verified step by step guidance1
Understand that a mole is a fundamental unit in chemistry used to count particles, similar to how a dozen counts 12 items.
Recognize that one mole represents a specific number of entities, which can be atoms, molecules, ions, or other specified particles.
Recall Avogadro's number, which is the exact number of entities in one mole, given as \$6.022 \times 10^{23}$.
Note that this number is constant and does not depend on the type of particle being counted.
Conclude that one mole corresponds to a quantity containing exactly \$6.022 \times 10^{23}$ specified entities, not the number of electrons, volume, or mass of a single atom.
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