The mass of oxygen gas occupying a volume of 11.2 litres at a temperature 27^ C and a pressure of 760 ~nm of mercury in kilograms is [ Molecular weight of oxygen =32]

Step-by-step solution

At STP (273 ~K and at 760 ~mm of Hg ) the mass of oxygen =32 ~g From P₁ V₁ m₁ T₁ = P₂ V₂ m₁ T₂ aligned & P₁=760 ~mm , V₁=2241 (at STP) & T₁=273 ~K & P₂=760 ~mm (given), V₂=11.2 it (given) & T₂=27+273=300 ~K & 760 224 32 ~g 273 = 760 11.2 m₂ 300 & m₂= 32 273 300 2 =14.56 ~g & =0.01456 ~kg & aligned