Potassium Chlorate Decomposes Upon Heating as Follows

question 88

Multiple Choice

Potassium chlorate decomposes upon heating as follows:
2KClO₃(s) → 2KCl(s) + 3O₂(g)
A 2.72-g sample of KClO₃ decomposes, and the oxygen at 23.4°C and 0.935 atm is collected. What volume of oxygen gas will be collected, assuming 100% yield?

• A) 2.21 mL
• B) 0.577 mL
• C) 0.0456 mL
• D) 0.0684 mL
• E) 0.866 mL

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