S

Shyam Dubey • 3.70K Points
Extraordinary

Q. Which metric correctly describes the amount of substance containing Avogadro's number of entities?

  • (A) One mole
  • (B) One liter
  • (C) One gram
  • (D) One mole fraction
  • Correct Answer - Option(A)
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Explanation by: Shyam Dubey
A mole is defined as the amount of substance containing exactly Avogadro's number (6.022×10^23) of elementary entities (atoms, molecules, ions, etc.). One liter is a volume, one gram is a mass (depends on substance), and mole fraction is a ratio — none describe the specific count of entities like a mole does.

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