An 8.00-gram sample of SO3 was placed in an evacuated container, where it decomposed at 600.8°C according to the following reaction: SO3 (g)⇌SO2 (g)+1⁄2O2 (g) At equilibrium, the total pressure and the density of the gaseous mixture were 1.80 atm and 1.60 g/L, respectively. Calculate Kp for this reaction.

Q: atm

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