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9 May, 08:02

If total pressure of multiple gases is 512 mmHg, and the pressure of oxygen gas is 332 mmHg and the pressure of carbon monoxide is 113 mmHg, what is the remaining pressure using Dalton's Gas Law?

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  1. 9 May, 08:15
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    Answer: 67 mmHg

    Explanation:

    According to Dalton's Gas Law, the total pressure of a mixture of gases is the sum of the pressure of each individual gas.

    i. e Ptotal = P1 + P2 + P3 + ...

    In this case,

    Ptotal = 512 mmHg

    P (oxygen) = 332 mmHg

    P (carbon mono-oxide) = 113 mmHg

    Remaining pressure (P3) = ?

    To get P3, apply Dalton's Gas Law formula

    Ptotal = P (oxygen) + P (carbon mono-oxide) + P3

    512 mmHg = 332 mmHg + 113 mmHg + P3

    512 mmHg = 445 mmHg + P3

    P3 = 512 mmHg - 445 mmHg

    P3 = 67 mmHg

    Thus, the remaining pressure is 67 mmHg
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