As per HOMEWORKLIB RULES,I have to answer question A.
Therefore,
Mole fraction = 0.21 and Pb = 760 mmHg, the partial pressure of oxygen is 0.21 x 760 mmHg = 160 mmHg.
9. A. The mole fraction of O2 in dry atmo- spheric air is 0.21. If P2...
The partial pressure of an air sample is given in the table below. What is the mole fraction of N2 in this air sample? Gases O2 N2 CO2 H2O Partial pressure (mmHg) 93 565 38 49
Calculate the partial pressure of O2 (P02, mm Hg) in dry air in Arcata (sea level- assume atmospheric pressure of 760 mm Hg). Arcata air never gets fully dry. Assume 90% humidity at 15°C (saturated water vapor pressure at 15°C=12.8 mm Hg) and calculated the actual partial pressure of O2 in Arcata air
7-A gas mixture consists of N2, O2, and Ne, where the mole fraction of N2 is 0.50 and the mole fraction of Ne is 0.20 If the mixture is at STP in a 3.0 L container, how many molecules of O2 are present? 8-Calculate the density of Freon-12, CF2Cl2, at 37.0°C and 0.369 atm. 9-Determine the final temperature of a gold nugget (mass= 256 g) that starts at 378 K and loses 5.37 kJ of heat to snowbank when it...
Question Completion Status: QUESTION 1 10 points A hydrocarbon gas is burned with air. The dry-basis (without H20) product gas composition is 1.5 mole% CO, 6 mole% CO2, 8.2 mole% O2, and 84.3 mole% N2. ne(mol C) (mol no (malain (100 mol dry gas 0.21 mol Oymol 0.015 mol COmol dry gas 0.79 mol Ny/mol 0.060 mol CO2 mol dry gas 0.082 mol Oz moi dry g 0.843 mol Nymol dry gas "wmol H20) 1. Using the method of atomic...
Lance Armstrong (fully doped) had a maximum oxygen consumption (VO2) of 5.5 liters O2/min. If during maximum exertion his arterial oxygen content is 20 ml/100 ml blood and his venous content is 2 ml/100ml blood, a) calculate his cardiac output. In mammals in general, blood volume is equal to 7% of body mass (assume one liter of blood weighs 1.0 kg). If he weighs 65kg b) during this maximum exertion how long will it take to circulate his entire blood...
65. A gas mixture contains 1.25 g N2 and 0.85 g O2 in a 1.55 L con- tainer at 18 °C. Calculate the mole fraction and partial pressure of each component in the gas mixture. 67. The hydrogen gas formed in a chemical reaction is collected over water at 30.0°C at a total pressure of 732 mmHg. What is the partial pressure of the hydrogen gas collected in this way? If the total volume of gas collected is 722 mL,...
A 1.00 L sample of dry air at 25 degree C and 786 mm Hg contains 0.925 g N_2 plus other gases including oxygen, argon, and carbon dioxide. A. What is the partial pressure (in mm Hg) of N_2 in the air sample? B. What is the mole fraction and mole percent of N_2 in the mixture? (Daltons law of partial pressures) Calculate the rms speed of O_2 molecules in a tank at 21 degree C and 15.7 atm.
When air (=21 mole% O2, 79 mole% N2) is placed in contact with 1000 cm3 of liquid water at body temperature, 36.9C, and 1 atm absolute, approximately 14.1 standard cubic centimeters [cm3(STP)] of gas are absorbed in the water at equilibrium. Subsequent analysis of the liquid reveals that 33.4 mole% of the dissolved gas is oxygen and the balanceis nitrogen. (a) Estimate the Henry's law coefficients (atm/mole fraction) of oxygen and nitrogen at 36.9C. (b) An adult absorbs approximately 0.4...
3. The composition of a volume of 1 liter of dry air is given in the table below. Calculate (6 Points) Component Nitrogen Oxygen Carbon dioxide Hydrogen Monatomic gases(Ar, Rn, He, Kr.Ne) Total Vol (ml) Mass (mg) Molecular weight (g/gmol) 780.3 893.4 209.9 274.5 0.592 28.015 32.00 44.003 2.016 39.94 0.3 0. 5.8 x 106 9.4 15.39 1000 ,183.882 a. the mass fraction of Nitrogen in Air b. the molecular weight of air in (g/gmole) c. the density of hydrogen...
9 ro what is the mole fraction of ethanol, CH CHOI, in a liquor that is 15.0% ethanol by mass? More Practices Calculate the molality of a solution that contains 25 g of H SO, dissolved in 40. g of H2O. What mass of water must be used to dissolve 20.0 grams of ethanol, C:HsOH, to prepare a 0.0500 molal solution of ethanol?