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A 8.65-L sample of gas has a pressure of 1.59 atm and a temperature of 94 °C. The sample is compressed to a volume of 5.94 L and is heated to 150 °C. Calculate the new pressure of the gas, assuming that no gas escaped during the experiment.

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Answer:

Convert 94C and 150C to Kelvins = 367 and 423

Use combined gas law formula:

P1V1/T1 = P2T2/V2

1.59x8.65/367 = P2x5.94/423

0.0374 = P2x5.94/423

Solve for P2; P2 = 2.67 atm

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