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JAMB Chemistry 1981 Question 13

Question 13

Mole Concept and Stoichiometry

The number of atoms in one mole of a substance is equal to

  1. A.the atomic number
  2. B.the Avogadro number
  3. C.the gas constant
  4. D.the number of neutrons
  5. E.the number of electrons.
Show the answer and explanation

Answer: B (the Avogadro number)

Explanation

One mole of an element contains 6.02 × 1023 atoms, the Avogadro number.