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A piston has the dimensions of 0.12m high and a radius of 0.16m. It is at atmospheric pressure and room temperature(25 degree Celsius). How many moles of gas are in the system? The total mass of the gas is 12.48g. What is the molecular mass of the gas? the gas expands so that the cylinder has twice the height. How much work did the gas do assuming the pressure remained constant?

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