In a Self-Contained Breathing Apparatus, Potassium Superoxide, KO₂, Reacts with Carbon

question 6

Multiple Choice

In a self-contained breathing apparatus, potassium superoxide, KO₂, reacts with carbon dioxide to form potassium carbonate and oxygen. Identify the limiting reactant and determine the amount of oxygen gas, in moles, that can be produced from 250 g of KO₂ and 450 g of CO₂.
4KO₂(s) + 2CO₂(g) $\rightarrow$ 2K₂CO₃(s) + 3O₂(g)

• A) potassium superoxide limiting, 4.75 mol
• B) potassium superoxide limiting, 1.53 mol
• C) potassium superoxide limiting, 2.64 mol
• D) carbon dioxide limiting, 1.53 mol
• E) carbon dioxide limiting, 2.64 mol

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