How many atoms are in 64g sulfur?

To find the number of atoms in 64g of sulfur, you need to divide the given mass by the molar mass of sulfur, which is approximately 32 g/mol. This gives you 2 moles of sulfur. One mole of sulfur contains 6.022 x 10^23 atoms, so 2 moles would have 1.2044 x 10^24 atoms.