# How many molecules are in 3.0 moles of carbon dioxide?

Aug 1, 2018

There are $3 \times {N}_{A}$ molecules...

#### Explanation:

Where ${N}_{A} \equiv 6.022 \times {10}^{23} \cdot m o {l}^{-} 1$..

And what is the mass of this number of molecules? And how many ATOMS? You should be able to answer pdq.