# Problem: Elemental sulfur occurs as octatomic molecules, S8. What mass (g) of fluorine gas is needed to react completely with 17.8 g of sulfur to form sulfur hexafluoride?

###### FREE Expert Solution

The reaction is:

24 F2 + S8 → 8 SF6

We’re given the following:

Moles of S8 = 17.8 g

Mole-to-mole comparison = 1 mole of S8 reacts with 24 moles of F2

Molar Mass of F2 = 38.00 g/mol F2

Molar Mass of S8 = 256.56 g/mol S8

94% (123 ratings) ###### Problem Details

Elemental sulfur occurs as octatomic molecules, S8. What mass (g) of fluorine gas is needed to react completely with 17.8 g of sulfur to form sulfur hexafluoride?

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.