Question

How many moles of `Cl` are in 2.7 mol `CaCl_2`?

Answer 1

5.4 mol Cl

Explanation:

One mole of Ca`Cl_2` has one mole of Calcium and 2 moles of Cl atoms.

I can write two conversion factors using this fact

(1 mole of Ca`Cl_2` \ 2 moles of Cl) and ( 2 moles of Cl \ 1 mole of Ca`Cl_2`)

( 2.7 moles of Ca`Cl_2` ) x ( 2 moles of Cl \ 1 mole of Ca`Cl_2`)

5.4 moles of Cl.