Question
Give the number of oxygen molecules in 1 mol of oxygen. [Ans. 6.022 × 1023]
Answer
6.022 × 1023
Explanation
One mole of oxygen contains Avogadro’s number (NA) of oxygen molecules.
The value of Avogadro’s number is approximately 6.022 × 1023 molecules per mole. Therefore, the number of oxygen molecules in 1 mole of oxygen is:
1 mole of oxygen = Avogadro’s number of oxygen molecules
= 6.022 × 1023 oxygen molecules