Question

How many moles of copper (Cu) are in 65.8 g Cu?

Answer 1

How many moles of copper (Cu) are in 65.8 g Cu?

1.04 mol Cu CORRECT ANSWER

10.9 mol Cu

41.7 mol Cu

63.5 mol Cu

I took the test and A) was correct

Answer 2

Answer:

The correct answer is A) 1.04 mol Cu

{65.8 g     /   63.55 g/mol}

= 1.04 mol Cu

Explanation:

In  63.55  g  of copper metal there are  1 m o l  of  C u  atoms. By dividing the mass of Cu and molar mass, we can easily get the number of moles.