15.0 L closed vessel contains sulfur trioxide, sulfur dioxide, and oxygen gases that are in equilibrium at 350°C, with KP equal to 1.8x10-5. 2SO3 (g) ⇌ 2SO2 (g) + O2 (g) If the equilibrium partial pressures of SO2 and O2 are 0.024 atm and 0.057atm, respectively, how many grams of SO3 (MM=80 g/mol) are present in the container? (Hint: Use the ideal gas equation.)

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Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.