How Many ML of O₂ Gas at 25°C and 755

question 25

Multiple Choice

How many mL of O₂ gas at 25°C and 755 mm Hg pressure can be produced from the thermal decomposition of 0.300 grams of KClO₃(s) according to the chemical equation shown below?
2 KClO₃(s) → 2 KCl(s) + 3 O₂(g)

• A)30.1 mL
• B)40.2 mL
• C)90.4 mL
• D)181 mL

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