Mole to Mole Conversions

• Coefficients in balanced equations tell us the number of moles reacted or produced.
• They can be used as conversion factor

               _X + _Y = _Z

*** WHAT YOU NEED over WHAT YOU HAVE





ex. If 0.15 mol of methane are consumed in a combustion reaction, how many moles of CO2  are produced?

          1CH4 + 2O2 à 1CO2 + 2H2O

          

          0.15mol x 1/1 = 0.15 mol of CO2

ex. How many moles of bauxite (Aluminum Oxide) are required to produce 1.8 mol of pure Aluminum?

          2Al2O3 à 4Al + 3O2

          1.8mol x 2/4 = 0.9mol off Al2O3

ex. When 1.5 mol of copper react with iron(II) chloride. How many moles of iron should be produced?

          1Cu + 1FeCl2 à 1Fe + 1CuCl2

          1.5mol x 1/1 = 1.5mol of Fe