Question

question 5 of 10
which of the following best describes a mole as used in chemistry?

a. a simplification of mathematics
b. a very large number of objects
c. a salt dissolved in water
d. a measure of concentration

Explanation:

• Option A: A mole in chemistry is not about simplifying mathematics, so A is incorrect.
• Option B: A mole is defined as \(6.022\times10^{23}\) entities (atoms, molecules, ions, etc.), which is a very large number of objects. This matches the definition of a mole.
• Option C: A salt dissolved in water is a solution, not related to the definition of a mole, so C is incorrect.
• Option D: Molarity is a measure of concentration, while a mole is a unit of amount of substance, so D is incorrect.

Answer:

B. A very large number of objects