The Avogadro number of 24g of magnesium is the same as that of

  • A 1g of hydrogen molecules
  • B 16g of oxygen molecules
  • C 32g of oxygen molecules
  • D 35.5g of chlorine molecules

The correct answer is C. 32g of oxygen molecules

24mg = 1 mole of magnesium and

32g of O2 = mole of O2

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