How Many Moles of Oxygen Are Formed When 58

question 49

Multiple Choice

How many moles of oxygen are formed when 58.6 g of KNO₃ decomposes according to the following reaction? The molar mass of KNO₃ is 101.11 g/mol. 4 KNO₃(s) → 2 K₂O(s) + 2 N₂(g) + 5 O₂(g)

• A) 0.290 mol O₂
• B) 0.580 mol O₂
• C) 18.5 mol O₂
• D) 0.724 mol O₂
• E) 1.73 mol O₂

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Definitions:

Homogeneous Catalyst

A catalyst that exists in the same phase (solid, liquid, or gas) as the reactants, facilitating the reaction uniformly throughout the mixture.

Heterogeneous Catalyst

A catalyst that exists in a different phase (solid, liquid, or gas) than the reactants in a chemical reaction, facilitating the reaction without undergoing permanent change.

Heterogeneous Catalysts

Catalysts that exist in a different phase than the reactants in a chemical reaction, facilitating the reaction without being consumed.

Chromatographically

Pertaining to chromatography, a method for separating components of a mixture based on differences in their movement through a stationary medium.