In the Presence of a Catalyst, Potassium Chlorate Decomposes and Provides

question 6

Multiple Choice

In the presence of a catalyst, potassium chlorate decomposes and provides a very simple way to generate oxygen via the following decomposition reaction: 2KClO₃(s) 3O₂(g) 2KCl(s)
How many grams of potassium chlorate are needed to produce 38.2 L of oxygen gas at a pressure of 2.00 atm at a temperature of 310 K?

• A)10.7 g
• B)245 g
• C)157 g
• D)423 g
• E)61.7 g

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