Question

Question #ad61a

Answer 1

`0.02789` moles Copper metal.

Explanation:

First, you need to write out the balanced chemical reaction equation.
`Cu^(2+) → Cu^0` Basic equation, it is already balanced. We just assume the electron-donation was provided.

In this case, although we are converting the form of the copper, the number of moles remains the same. So, if we started with 0.02789 moles of copper ions, we would end up with 0.02789 moles of copper metal. This is the real utility of the “mole” in chemistry!