Anonymous
Anonymous asked in Science & MathematicsChemistry · 7 years ago

Calculate the partial pressure of ozone at 441 ppb if the atmospheric pressure is 0.67 atm.?

Mexico has set an air quality standard of 110 ppb (parts per billion) for ozone, but frequently the ozone levels actually measured are much higher. The concentration of ozone in Mexico City has been measured at 441 ppb (0.441 ppm). Mexico City sits at an altitude of 7400 feet, which means its atmospheric pressure is only 0.67 atm.

Calculate the partial pressure of ozone at 441 ppb if the atmospheric pressure is 0.67 atm.

I'm really lost. I'm not sure how to solve itt!

thank you sooo much to whoever answers

1 Answer

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  • Jan
    Lv 7
    7 years ago
    Favorite Answer

    441 ppb = 441 Ozone/10^9 total = partial pressure O3 / p(tot) = P(O3) / 0.67 atm

    3.0*10^2 atm/ 10^9 = P(O3)

    p(O3) = 3.0*10^-7 atm

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