Question

You have 4.872 x 1034 atoms of Copper. How many moles is this?

7.666 x 10^32 mol
2.933 x 10^58 mol
1.237 mol
8.093 x 10^10 mol

Answer 1

The answer is 8.093*10^10 mol.

To solve the question, just plug in the information into this equation:

n = N/NA

Where:

n - number of moles

N - number of atoms

NA - avogadro's number (6.022*10^23)

We know the number of atoms, as well as NA. Divide for the number of moles.