Question

Question #76f3b

Answer 1

A mole of gold atoms has greater mass.

Explanation:

We know that `1` mole of any substance has `6.023 xx 10^23` number of atoms or molecules, this number is called Avogadro's number.

Therefore, number of atoms in `1` mole of silver is equal to the number of atoms in `1` mole of gold.

It follows that whichever element out of silver and gold has higher average atomic mass will have greater molar mass.

1. Average atomic mass of silver`=107.8676` amu
2. Average atomic mass of gold`=196.96655` amu

From above it is clear that a mole of gold atoms has greater mass.