# How many molecules does 1 mole of O_2 gas have?

Apr 3, 2016

#### Answer:

In $1$ $m o l$ ${O}_{2}$ gas, by definition you have Avogadro's number of MOLECULES.

#### Explanation:

Avogadro's number, ${N}_{A}$ $=$ $6.022140857 \times {10}^{23}$. In the given quantity of dioxygen gas there are $2 \times {N}_{A}$ oxygen atoms.

To put this another way, a wholesaler buys 100 pairs of gloves. How many individual gloves does he buy?