How many particles would be found in a 89.2 g sample of Na?

One mole of a substance contains 6.02 * 10∧23 particles. Thus we first convert 89.2 g to moles. 1 mole of sodium contains 23 g

Hence 89.2 g = 89.2 / 23 g = 3.878 moles

Therefore, 3.878 * 6.02*10∧23 particles = 23.346 * 10∧23 particles

Hence 89.2 g of sodium contains 2.335 * 10∧24 particles