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

The theoretical yield of copper is 79.6281 g

Step-by-step explanation:

`CuSO_4+Zn\rightarrow ZnSO_4+Cu`

Moles of copper sulfate =
`(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 :

`(1)/(1)* 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