# In one mole of freon (C Cl_2F_2), what is the chemical ratio of carbon to chlorine to fluorine?

Oct 12, 2016

And thus the atomic ratio $C : C l : F = 1 : 2 : 2$.
Here, we used the mole as our unit, $1$ $\text{mole}$ $\equiv$ $6.022 \times {10}^{23} \cdot m o {l}^{-} 1$. I could have equally used dozens, or tens, or 100's, as our unit of measure. It is just that $1$ $\text{mole}$ of ""^12C atoms has a mass of $12.00 \cdot g$ precisely, and thus we can make the link between atoms and molecules, which we can't see, with the macro world of grams, and litres, whose quantities we can weigh out on a balance, or in a flask.
Can you calculate the mass of a mole of $\text{freon}$ in grams?