Answer:
9.02 moles Na
Explanation:
To find the amount of moles, you need to multiply the given amount by Avogadro's Number. This number allows you to convert from atoms to moles of any substance.
Avogadro's Number:
6.022 x 10²³ atoms = 1 mole
5.43 x 10²⁴ atoms Na 1 mole
-------------------------------- x --------------------------------- = 9.02 moles Na
6.022 x 10²³ atoms
