Answered: Why P2 is obtained by subtracting the…

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter13: Gases

Section: Chapter Questions

Problem 33A

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A gaseous mixture of O2 and N2 contains 35.8 % nitrogen by mass. What is the partial pressure of oxygen (in atm) in the mixture if the total pressure is 1 atm? Assume ideal behavior.
A mixture of He, Ne and Ar has a pressure of 7.85 atm. If the Ne has a mole fraction of 0.47 and Ar has a mole fraction of 0.23, what is the partial pressure of He?
A gaseous mixture contains 421.0 Torr H,(g), 370.1 Torr N,(g), and 75.9 Torr Ar(g). Calculate the mole fraction, x, of each of these gases. XH2 XN2 XAr =
Commercial scuba divers use tanks filled with a mixture of gases known as Trimix on very long, deep dives. Trimix is composed of 70% nitrogen, 10% oxygen, and 20% helium. The total pressure of TRIMIX inside a certain tank is at the beginning of a dive is 118.4atm. What is the partial pressure of oxygen in a tank?
A gaseous mixture contains 429.0 Torr H2(g), 348.1 Torr N2(g), and 76.3 Torr Ar(g). Calculate the mole fraction, χ, of each of these gases.
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A mixture of Ar, H2, and SO2 has a pressure of 7.85 atm. If the Ar has a mole fraction of 0.47 and H2 has a mole fraction of 0.23, what is the pressure of SO2?
What is the mole fraction of oxygen in a mixture of N2, O2, and Ar in which the partial pressure of N2 is 0.71 atm, the partial pressure of Ar is 1.39 atm, and the total pressure of the system is 2.88 atm?
Consider the following chemical reaction:C(s)+H2O(g)→CO(g)+H2(g) How many liters of hydrogen gas are formed from the complete reaction of 1.07 molmol of CC? Assume that the hydrogen gas is collected at a pressure of 1.0 atmatm and a temperature of 317 KK .
A 801.1 mL aqueous solution of 628.5 mM Na2S is combined with 100.0 mL of an aqueous HCl solution whose HCl concentration is not known. The reaction produces 4.126 L of H2S gas at a pressure of 1.00 atm and a temperature of 35.93∘C. There are sulfide ions still present in the solution after the reaction is complete. What was the concentration of HCl in the original HCl solution? Express your answer in units of molar (M) using at least three significant digits.

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Why P2 is obtained by subtracting the vapor pressure of water from the barometric pressure?