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12 February, 11:36

A 159.0L sample of O2 gas is collected at 2.20 atm and 45C. If the temperature remains constant, what volume will the gas occupy if the pressure is decreased to 1.90 atm?

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  1. 12 February, 11:55
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    184.1 L

    Explanation:the following data were obtained from the question:

    V1 (initial volume) = 159.0L

    P1 (initial pressure) = 2.20 atm

    P2 (final pressure) = 1.90 atm

    V2 (final volume) =.?

    Since the temperature is constant, the gas is obeying Boyle's law. Using the Boyle's law equation P1V1 = P2V2, we can easily calculate the final volume of the gas as illustrated below:

    P1V1 = P2V2

    2.2 x 159 = 1.9 x V2

    Divide both side by 1.9

    V2 = (2.2 x 159) / 1.9

    V2 = 184.1 L

    Therefore, the final volume of the gas is 184.1 L
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