How many total atoms are in the formula Al_2(CO_3)_3?

Mar 26, 2017

Well, if I have done my sums right, there are 14 atoms in the one formula unit of $\text{aluminum carbonate}$.

Explanation:

And so there are $2 \times A l + 3 \times C + 9 \times O = \text{14 atoms}$.

How many atoms in one mole of the stuff?