Question

If you have a 15.055*10^22 atoms, using Avogadro's Number, how many moles is thatequivalent to?

Answer 1

`\begin{gathered} 1mole=6.022x10^(23)\text{ atoms} \\ xmoles=15.055x10^(22)\text{ atoms} \\ xmoles.6.022x10^(23)atoms=1mole.15.055x10^(22)\text{ atoms} \\ \text{x moles = }\frac{1mole.15.055x10^(22)atoms}{6.022x10^(23)\text{ atoms}} \\ x\text{ = }0.25\text{ moles} \end{gathered}`

Therefore 15.055x10^22 atoms is equivalent to 0.25 moles.