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Elemental sulfur occurs as octatomic molecules, S8. What
Chapter 3, Problem 47P(choose chapter or problem)
Elemental sulfur occurs as octatomic molecules, S8. What mass of fluorine gas is needed to react completely with 17.8 g of sulfur to form sulfur hexafluoride?
Questions & Answers
QUESTION: Problem 47P
Elemental sulfur occurs as octatomic molecules, S8. What mass of fluorine gas is needed to react completely with 17.8 g of sulfur to form sulfur hexafluoride?
ANSWER:
Solution 47P
Here we have to calculate what mass of fluorine gas is needed to react completely with 17.8 g of sulfur to form sulfur hexafluoride.
Step 1
Given:
Mass of S8 = 17.8 g
Molar mass of F2 = 37.99 g
Molar mass of S8 = 256.48 g
In order to calculate the mass of fluorine gas, 1st we have to write a balanced chemical equation for the reaction between fluorine and sulphur to form sulfur hexafluoride.
It is known that the symbol of elemental sulfur occurs as octatomic molecules is S8.
Symbol of Fluorine gas is F2
Symbol for sulfur hexafluoride is SF6
The chemical equation is,
S8 + F2 → SF6
The balanced chemical equation is,
S8 +24 F2 → 8 SF6