Question

If 200.0 g of copper(II) sulfate react with an excess of zinc metal, what is the theoretical yield of copper?

Answer 1

 The theoretical yield of copper is a 78:32 ratio. 

Answer 2

Answer:

The theoretical yield of copper is 79.6281 g

Explanation:

$CuSO_4+Zn\rightarrow ZnSO_4+Cu$

Moles of copper sulfate = $\frac{200.0 g}{159.609 g/mol}=1.2530 mol$

According to reaction 1 mol of copper sulfate gives 1 mol of copper .

Then 1.2530 mol of copper sulfate will gives :

$\frac{1}{1}\times 1.2530 mol=1.2530 mol$ of copper .

Mass of 1.2530 mol of copper :

1.2530 mol × 63.55 g/mol = 79.6281 g

The theoretical yield of copper is 79.6281 g