Question

How many atoms are in 54 g of Am?

Answer 1

Answer:

Explanation:

the mass of Am aka Americium is 243g

1 mole of Am has 243 g

number of moles = given mass / atomic mass

                             =  54/243

                             = 0.22222

                             = 0.22 (approx.)

number of atoms = 0.22 * 6.022 * 10²³

                             = 1.32484 * 10²³

                             = 1.325 * 10²³