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Determining the volume inside a bulb w/ a gas in it

An ideal gas at 650 mm Hg pressure occupies a bulb of unknown volume. A certain amount of the gas was withdrawn and found to occupy 1.52 mL at 1.00 atm. The pressure of the remaining gas in the bulb was found to be 600 mm Hg. Assuming that all the measurements were made at the same temperature, calculate the volume of the bulb.

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If the gas that was withdrawn from the bulb were to occupy the bulb alone, then it would exert a pressure of:
650 mm Hg - 600 mm Hg = 50 mm ...