Chemistry Practice Problems Chemistry Gas Laws Practice Problems Solution: A cylinder of medical oxygen has a volume of 35.4 ...

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Solution: A cylinder of medical oxygen has a volume of 35.4 L, and contains O2 at a pressure of 151 atm and a temperature of 25 °C. What volume of O2 does this correspond to at normal body conditions, that is, 1 atm and 37 °C?

Problem

A cylinder of medical oxygen has a volume of 35.4 L, and contains O2 at a pressure of 151 atm and a temperature of 25 °C. What volume of O2 does this correspond to at normal body conditions, that is, 1 atm and 37 °C?

Solution

We start from the Ideal Gas equation: PV = nRT

In this problem, R and number of moles is constant so we can relate the two conditions by the equation: PV/T = nR

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