Oxygen Gas Can Be Prepared in the Laboratory by Heating $\rightarrow$

question 61

Multiple Choice

Oxygen gas can be prepared in the laboratory by heating potassium chlorate, so that it decomposes according to the equation: 2KClO₃(s) $\rightarrow$ 2KCl(s) + 3O₂(g) What would the pressure of O₂ be in a 2.50 L glass container at 22.0^oC if 6.50 g of KClO₃ is decomposed?

• A)0.0796 atm
• B)1.78 atm
• C)6.62 atm
• D)0.771 atm
• E)0.0575 atm

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