Question Detail
Question
The mole is defined as:
Correct Answer
Option B is the correct answer.
Detailed Explanation
The mole is the SI unit for amount of substance. It is defined as the amount of a substance that contains as many elementary entities (e.g., atoms, molecules) as there are atoms in 12 grams of pure carbon-12, which is Avogadro's number.
Hint
It's a counting unit, like a dozen, but for an extremely large number of particles.