1. Questions

Chemistry

An airplane is pressurized to 650mm Hg, which is the atmospheric pressure at a ski resort at 13,000ft altitude.

a. if air is 21% oxygen, what is the partial pressure of oxygen on the plane?

b. If the partial pressure of oxygen drops below 100mm Hg, passengers become drowsy. If this happens, oxygen masks are released. What is the total cabin pressure at which oxygen masks are dropped?

  1. 👍
  2. 👎
  3. 👁
Helen

  1. The mole fraction of oxygen is 0.21
    a. PO2 = 650 x 0.21

    b. Ptotalx0.21 = 100
    solve for Ptotal
    Check my thinking.

    1. 👍
    2. 👎
    DrBob222

  2. 476.2

    1. 👍
    2. 👎
    b

  4. A.136.5 or 137
    B. 476

    1. 👍
    2. 👎
    s

Respond to this Question

First Name

Your Response

Similar Questions

  1. university chemistry

    The instruction booklet for your pressure cooker indicates that its highest setting is 11.4 psi. You know that standard atmospheric pressure is 14.7 psi, so the booklet must mean 11.4 psi above atmospheric pressure. At what

  2. chemistry

    In which one of the following processes is ΔH = ΔE? a. 2HI(g) → H2(g) + I2(g) at atmospheric pressure. b. Two moles of ammonia gas are cooled from 325°C to 300°C at 1.2 atm. c. H2O(l) → H2O(g) at 100°C at atmospheric

  3. mathematics

    Atmospheric pressure, measured in pounds per square inch (\text{psi})(psi)left parenthesis, start text, p, s, i, end text, right parenthesis is the force exerted by Earth's atmosphere over a given area. The atmospheric pressure,

  4. math

    p=14.63⋅0.8 Atmospheric pressure, measured in pounds per square inch p, s, i is the force exerted by Earth's atmosphere over a given area. The atmospheric pressure, p, exerted on an airplane flying at an altitude of a miles

  1. Math IN URGENT NEED OF FEEDBACK

    If the temperature is constant, then the atmospheric pressure P (in pounds/square inch) varies with the altitude above sea level h in accordance with the law given below where p0 is the atmospheric pressure at sea level and k is a

  2. chemistry

    How many moles of gas must be forced into a 5.0 L tire to give it a gauge pressure of 33.6 psi at 28 ∘C? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.8 psi so that the total

  3. Chemistry

    How many moles of gas must be forced into a 3.5 L ball to give it a gauge pressure of 9.4 psi at 25 degrees C? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.7 psi so that the total

  4. chemistry

    The instruction booklet for your pressure cooker indicates that its highest setting is 13.5psi psi . You know that standard atmospheric pressure is 14.7 psi \rm psi, so the booklet must mean 13.5psi psi above atmospheric pressure.

  1. physics

    A pressurized tank of water has a 10cm diameter orifice at the bottom, where water discharges to the atmosphere. the water level is 3 m above the outlet. the tank air pressure above the water level is 300 kpa (absolute)while the

  2. precalculus

    The earth's atmospheric pressure, P, in terms of height above sea level is often modeled by an exponential decay function. The pressure at sea level is 1013 millibars and the pressure decreases by 14% for every kilometer above sea

  3. College Chemistry

    The boiling point of a liquid at atmospheric pressure is the temperature: a. at which bubbles of vapor expand within the liqud b. at which the liquid solidifies c. at which the vapor pressure first exceeds the critical temperature

  4. chemistry

    The instruction booklet for your pressure cooker indicates that its highest setting is 13.5psi . You know that standard atmospheric pressure is 14.7psi , so the booklet must mean 13.5psi above atmospheric pressure. At what

You can view more similar questions or ask a new question.