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MHT CET Chemistry question

ChemistryStates of Matter (Gaseous & Liquid State)MHT CET

Oxygen gas generated by the decomposition of potassium chlorate is collected. The volume of oxygen collected at 24°C and atmospheric pressure of 760 mm Hg is 128 mL. Calculated the mass of oxygen gas obtained. The pressure of the water vapour at 24°C is 22.4 mm Hg

Answer: (B)

Solution

mm Hg, so mol

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Question ID VK-069684