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An industrial sized helium tank holds helium at a pressure of Po = 190 atm ....

An industrial sized helium tank holds helium at a pressure of Po = 190 atm . From the tank, a volume of Vo = 0.31 L expands to fill a birthday balloon at a pressure of Pf = 1.19 atm . Determine the volume Vf that the helium takes up inside the balloon.

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