How many atoms are in 0.00125 moles of zinc
Each mole has \(6.022 *10^{23}\) atoms.\(\frac{1}{8}* 10^{-2}*6.022* 10^{23} = 7.5* 10^{20}\) atoms
One mole of anything is 6.02210^23 of that thing. so just multiply 6.02210^23 by 0.00125 to find your answer.
