Answer:
1.53x10^22 atoms of Au
Explanation:
To find the atoms of gold we need first, to convert the mass of gold to moles using molar mass of gold (196.97g/mol). Then, these moles must be converted to number of atoms based on definition of moles (1 mole = 6.022x10²³ atoms).
Moles Au:
5.00g Au * (1mol / 196.97g) = 0.0254 moles of Au
Atoms of Au:
0.0254 moles * (6.022x10²³ atoms / 1 mole) =
1.53x10^22 atoms of Au
