1. Find the molar mass of SF₆
* Sulfur (S) has a molar mass of 32.06 g/mol
* Fluorine (F) has a molar mass of 19.00 g/mol
* Molar mass of SF₆ = 32.06 g/mol + (6 * 19.00 g/mol) = 146.06 g/mol
2. Calculate the mass of sulfur in one mole of SF₆
* Mass of sulfur = 32.06 g/mol
3. Calculate the percent composition of sulfur
* Percent composition = (mass of sulfur / molar mass of SF₆) * 100%
* Percent composition = (32.06 g/mol / 146.06 g/mol) * 100%
* Percent composition of sulfur in SF₆ ≈ 21.95%
Therefore, the percent composition of sulfur in sulfur hexafluoride gas is approximately 21.95%.
