1. Determine the Molecular Formula of Sulfur

* Molecular sulfur exists as a ring of eight sulfur atoms, represented by the formula S₈.

2. Calculate the Molar Mass of S₈

* The atomic mass of sulfur (S) is approximately 32.07 g/mol.

* The molar mass of S₈ is 32.07 g/mol * 8 = 256.56 g/mol

3. Convert Grams of S₈ to Moles

* Divide the given mass of sulfur (27.1 g) by the molar mass of S₈:

27.1 g / 256.56 g/mol = 0.1056 mol S₈

4. Calculate the Number of Sulfur Atoms

* Multiply the number of moles of S₈ by Avogadro's number (6.022 x 10²³ atoms/mol) and by the number of sulfur atoms per S₈ molecule (8):

0.1056 mol S₈ * 6.022 x 10²³ atoms/mol * 8 atoms/molecule = 5.09 x 10²³ sulfur atoms

Therefore, there are approximately 5.09 x 10²³ sulfur atoms in 27.1 g of molecular sulfur.