What is the mass of 1.21 × 1021 atoms of sulfur? (NA = 6.022 × 1023 mol–1)

Divide the atoms of sulfur by avogadro's number (6.02 x 10^23 mol)

(1.21 x 10^21) / (6.02 x 10^23)

= 0.00200996678

Molar mass of Sulfur (listed in your periodic table) = 32.06g/mol

moles = mass/molar mass

mass = molar mass x moles

Mass of Sulfur = (32.06) x (0.00200996678) = 0.06g of Sulfur

i do not get it   at all