Question 25
Mole Concept and StoichiometryThe Avogadro number of 23g of sodium is the same as that of
- A.16g of oxygen molecules
- B.1g of hydrogen molecules
- C.35.5g of chlorine molecules
- D.32g of oxygen molecules.
Show the answer and explanation
Answer: D (32g of oxygen molecules.)
Explanation
23 g of sodium is 1 mole of atoms. 32 g of O2 is also 1 mole of molecules; the others are half a mole.