Sulfur dioxide ( ) gas is produced by the combustion of sulfur:
What volume of is produced at 1.2 atm and 350 K when 15.0 g of sulfur reacts completely?
(Molar mass of ; )
Options
A
9.2 L
B
11.2 L
C
18.4 L
D
23.0 L
Answer & Analysis
Answer
B
Analysis
Question Analysis
This question involves stoichiometric mole conversion and the ideal gas equation.
The main focus is on linking the mass of a solid reactant to the volume of a gaseous product, using the mole ratio from the balanced equation.
Key Concept Explanation
Stoichiometry: For the balanced reaction, 1 mole of produces 1 mole of .
Ideal gas equation rearranged for volume: , where is moles of the gas product.
Mass-to-mole conversion: .
Step-by-Step Solution
1. Calculate moles of :
2. Use 1:1 mole ratio to find moles of :
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