Question #84c98

1 Answer
Aug 24, 2017

22

Explanation:

The formula unit of calcium bicarbonate is "Ca"("HCO"_3)_2Ca(HCO3)2.

This means that there are 22 bicarbonate ions.

Since there is 11 carbon atom per bicarbonate ion, there are 1 xx 2 = 21×2=2 carbon atoms per formula unit.