4.0 101 56 How many moles of gases are contained in a human breath that takes in 0.50 L of air at 1.0 atm pressure...
A diver takes a deep breath at the surface where the pressure is 1.0 atm, filling his lungs with 4.0 L of air. He then descends to a depth where the pressure is 0.5 atm higher than at the surface. What is the volume of air in his lungs at this depth given that the air's temperature remains the same? 4 A) 2.67 L B) 8.00 L C) 0.375 L D) 6.00 L E) 0.125 L (181 Finol 014)
A normal breath takes in about 1.0 L of air. Assuming that air has an average molar mass of 28.8 g, and that its density is 0.97 g/L. how many molecules of air do you take in with each breath? 2.0 times 10^22 2.2 x 10^22 5.8 times 10^23 1.7 times 10^25 1.8 times 10^25
During a breath, the average human lung expands by about 0.50 L. If this expansion occurs against an external pressure of 1.0 atm, how much work (in J) is done during the expansion? Express your answer using two significant figures.
of NH; gas? 37. How many moles of O, are contained in 5.25 L at 26°C and 1.2 atm? JUAL 39 D 1.. CH.? 38. How many moles 752 torr?
How many moles of air are in the lungs of a average person with a total lung capacity of 3.8 L? Assume that the person is at 1.0 atm pressure and has a normal body temperature of 37 C
2. The air we breathe contains approximately 21.0 mol% oxygen. The average person breathes 0.50 L of air per breath a. If the atmospheric pressure is 745 mmHg, what is the partial pressure of oxygen in atmospheres? b. On a warm April day in Indiana, the air is 26.85 °C, how many moles of oxygen are inhaled in one breath? c. On top of Pikes Peak in Colorado, the temperature is -6.74 °C and the pressure is 442 mmHg. How...
How many moles of H2 are contained in 65.00 L of H2 at 1.00 atm and 273 K?
You draw in a deep breath on a chilly day, inhaling 3.6 L of 0∘C air. If the pressure in your lungs is a constant 1.0 atm, how much heat must your body supply to warm the air to your 37∘C internal body temperature? Assume that for air Cp = 29.1 J/(K⋅mol) as it consists mostly of nitrogen
6.A 2.5-L container holds 4.0 moles of helium gas at 1.0 atm pressure. The volume of the container is doubled and 1.0 moles of the helium leaks out. If the temperature is held constant, what is the new pressure in the container? (6 points) 7. Determine if a solid will form when the following aqueous solutions are mixed. Write the FORMULA and NAME of the solid. If no solid forms, write No Reaction. (8 points) NH4F (aq) + KOH (aq)...
9. How many moles of gas are contained in a 75 L flask at 425 K if the pressure is 380 mmHg a) 817 mol c) 2.15 mol e) 0.0106 mol b) 409 mol d) 1.08 mol