17. A sample of oxygen gas has volume 150.0 mL, at 0.947 atm, what will be the volume of the gas at 750.12 mm of Hg if temperature remain co

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17. A sample of oxygen gas has volume 150.0 mL, at 0.947 atm, what will be the volume of the gas at 750.12 mm of Hg if temperature remain constant.
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Bình An 4 years 2021-07-16T03:09:34+00:00 1 Answers 30 views 0

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  1. mocmien2
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    2021-07-16T03:10:46+00:00
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    Answer:

    143.9 mL is the new volume for the gas.

    Explanation:

    Let’s apply one of the gases law to solve this problem:

    Boyle’s law states that the product of pressure and volume remains constant when the T° is not modified.

    P₁ . V₁ = P₂ . V₂

    Be careful because we have T° in mmHg. We need to convert to atm:

    750.12 mmHg . 1 atm / 760 mmHg = 0.987 atm

    We replace data:

    150 mL . 0.947 atm = 0.987 atm . V₂

    V₂ = (150 mL . 0.947 atm) / 0.987 atm

    V₂ = 143.9 mL

    This term P . V comes from the Ideal Gases Law

    P . V = n . R . T

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