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Part A: A gas cylinder has a volume of 43.20 litres. If the cylinder contains helium...

Part A: A gas cylinder has a volume of 43.20 litres. If the cylinder contains helium at a temperature of 28.00 deg. C and an absolute pressure of 1800 psi, how many moles (mol) of gas are contained in the cylinder? Part B: If the temperature of the gas is increased to 78.0 deg. C, what will the absolute pressure be?

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