How many atoms are in 18.016g of sulfur?

= 3.384 × 10^23 atoms

We are given 18.016 g of sulfur

We are required to determine the number of atoms of sulfur

We will use the following steps;

Number of moles = Mass ÷ molar mass

Molar mass of sulfur = 32.065 g/mol

Therefore;

Number of moles = 18.016 g÷ 32.065 g/mol

                            = 0.562 moles

Using the Avogadro's constant;

1 mole of an element = 6.022 × 10^23 atoms

Therefore;

For 0.562 moles;

= 0.562 moles × 6.022 × 10^23 atoms

= 3.384 × 10^23 atoms

Therefore; there are 3.384 × 10^23 atoms in 18.016 g of Sulfur.

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