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

question 9

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) 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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