1)we need a balanced equation: CuSO₄ + Zn ---> ZnSO₄ + Cu
2) we need to convert the grams of CuSO₄ to moles using the molar mass.
molar mass CuSO₄= 63.5 + 32.0 + (4 x 16.0)= 160 g/mol
[tex]200.0 g CuSO_4 ( \frac{1 mol}{160 grams} )= 1.25 mol CuSO_4[/tex]
3) convert moles of CuSO₄ to moles of Cu
[tex]1.25 mol CuSO_4 ( \frac{1 mol Cu}{1 mol CuSO_4} )= 1.25 mol Cu[/tex]
4) convert moles of Cu to grams using it's molar mass.
molar mass Cu= 63.5 g/mol
[tex]1.25 mol (\frac{63.5 grams}{1 mol} )= 79.4 grams Cu[/tex]
I did it step-by-step as the explanation but you can do all of this in one step.
[tex]200.0 g CuSO_4 ( \frac{1 mol CuSO_4}{160 g} ) ( \frac{1 mol Cu}{1 mol CuSO_4} ) ( \frac{63.5 grams}{1 mol Cu} )= 79.4 grams Cu[/tex]
