Ask Question
20 July, 07:08

Whitney's tidal volume, which is the volume of air that she inhales and exhales, was 0.56 L. Her tidal volume was measured at a body temperature of 37 ∘C and a pressure of 744 mmHg. How many moles of nitrogen does she inhale in one breath if air contains 78% nitrogen?

+5
Answers (1)
  1. 20 July, 07:41
    0
    Given:

    Volume of air inhaled V = 0.56 L

    Temperature T = 37 C = 37 + 273 = 310 K

    Pressure P = 744 mmHg = 744/760 = 0.979 atm

    % N2 in air = 78%

    To determine:

    The moles of N2 inhaled in one breath

    Explanation:

    Step 1: Calculate the moles of air inhales

    Based on the ideal gas law:

    PV = nRT

    where P = pressure, T = temperature, V = volume, n = # moles

    R = gas constant = 0.0821 L atm/mol-K

    n = PV/RT = 0.979 * 0.56/0.0821*310 = 0.0215 moles of air

    Step 2: Calculate the moles of N2

    It is given that air contains 78% N2

    Therefore:

    moles of N2 = 0.0215 * 78/100 = 0.0168 moles

    Ans: moles of N2 = 0.0168
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Whitney's tidal volume, which is the volume of air that she inhales and exhales, was 0.56 L. Her tidal volume was measured at a body ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers