O 73% 4:37 PM Wed Feb 12 88 chem 1b readings chem 1b readings chem 1B discussion contains 473 mL of N2 at 298 K and 2.6 atm. What is the final pressure if the contents of these two syringes are injected into a 1.00 L container at 273 K? ♥. -589mL, Ts326k, R=1.2atm T=208K, P: 2. vatm Nレe473mし (A) 0.59 atm. (B) 1.1 atm (C) 1.7 atm (D) 1.9 atm (E) 3.8 atm (12) The following reaction is used to generate hydrogen gas in the laboratory. If 243 mL of gas is collected over water at 25°C and has a total pressure of 745 mm Hg, what mass of hydrogen is produced? A possibly useful table of water vapor pressures is provided below. P (mm Hg) Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g) T(°C) 20 17.55 25 23.78 30 31.86 (C) 0.0190 g (A) 0.0196 g (B) 0.0717 g (D) 0.0144 g (E) 0.0449 g (13) The mole fraction of carbon dioxide in dry air near sea level is 0.000375, where the molar mass of carbon dioxide is 44.010. The partial pressure of carbon dioxide when the total atmospheric pressure (dry air) is 97.5 kPa is kPa. (C) 0.0370 (A) 2.63 × 105 (В) 5.97 х 103 (D) 1.63 (E) 8.40 × 10-4 (14) The concentration of carbon monoxide in a sample of air is 9.2 ppm. There are molecules of CO in 1.00 L of this air at 755 torr and 23°C.
O 73% 4:37 PM Wed Feb 12 88 chem 1b readings chem 1b readings chem 1B discussion contains 473 mL of N2 at 298 K and 2.6 atm. What is the final pressure if the contents of these two syringes are injected into a 1.00 L container at 273 K? ♥. -589mL, Ts326k, R=1.2atm T=208K, P: 2. vatm Nレe473mし (A) 0.59 atm. (B) 1.1 atm (C) 1.7 atm (D) 1.9 atm (E) 3.8 atm (12) The following reaction is used to generate hydrogen gas in the laboratory. If 243 mL of gas is collected over water at 25°C and has a total pressure of 745 mm Hg, what mass of hydrogen is produced? A possibly useful table of water vapor pressures is provided below. P (mm Hg) Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g) T(°C) 20 17.55 25 23.78 30 31.86 (C) 0.0190 g (A) 0.0196 g (B) 0.0717 g (D) 0.0144 g (E) 0.0449 g (13) The mole fraction of carbon dioxide in dry air near sea level is 0.000375, where the molar mass of carbon dioxide is 44.010. The partial pressure of carbon dioxide when the total atmospheric pressure (dry air) is 97.5 kPa is kPa. (C) 0.0370 (A) 2.63 × 105 (В) 5.97 х 103 (D) 1.63 (E) 8.40 × 10-4 (14) The concentration of carbon monoxide in a sample of air is 9.2 ppm. There are molecules of CO in 1.00 L of this air at 755 torr and 23°C.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:O 73%
4:37 PM Wed Feb 12
88
chem 1b readings
chem 1b readings
chem 1B discussion
contains 473 mL of N2 at 298 K and 2.6 atm. What is the final pressure if the contents of these
two syringes are injected into a 1.00 L container at 273 K? ♥. -589mL, Ts326k, R=1.2atm
T=208K, P: 2. vatm
Nレe473mし
(A) 0.59 atm.
(B) 1.1 atm
(C) 1.7 atm
(D) 1.9 atm
(E) 3.8 atm
(12) The following reaction is used to generate hydrogen gas in the laboratory. If 243 mL of gas
is collected over water at 25°C and has a total pressure of 745 mm Hg, what mass of hydrogen is
produced? A possibly useful table of water vapor pressures is provided below.
P (mm Hg)
Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g)
T(°C)
20
17.55
25
23.78
30
31.86
(C) 0.0190 g
(A) 0.0196 g
(B) 0.0717 g
(D) 0.0144 g
(E) 0.0449 g
(13) The mole fraction of carbon dioxide in dry air near sea level is 0.000375, where the molar
mass of carbon dioxide is 44.010. The partial pressure of carbon dioxide when the total
atmospheric pressure (dry air) is 97.5 kPa is
kPa.
(C) 0.0370
(A) 2.63 × 105
(В) 5.97 х 103
(D) 1.63
(E) 8.40 × 10-4
(14) The concentration of carbon monoxide in a sample of air is 9.2 ppm. There are
molecules of CO in 1.00 L of this air at 755 torr and 23°C.
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