68. How many moles of gas must be forced into a 4.8-L fire to give it a gauge pressure of 32.4 psi at 25 °C? The gauge is relative to atmospheric pressure. Assume that pressure atmospheric pressure is 14.7 psi so that the total pressure in the tire is 47.1 psi. 70. An experiment shows that a 113-mL gas sample has a mass of 0.171 g at a pressure of 721 mm Hg and a temperature of 32 °C. What is the molar mass of the gas? 72. A sample of gas has a mass of 0.555 g. Its volume is 117 ml at a temperature of 85 °C and a pressure of 753 mm Hg. Find the molar mass of the gas. vih dupe A 74. A m0
68. How many moles of gas must be forced into a 4.8-L fire to give it a gauge pressure of 32.4 psi at 25 °C? The gauge is relative to atmospheric pressure. Assume that pressure atmospheric pressure is 14.7 psi so that the total pressure in the tire is 47.1 psi. 70. An experiment shows that a 113-mL gas sample has a mass of 0.171 g at a pressure of 721 mm Hg and a temperature of 32 °C. What is the molar mass of the gas? 72. A sample of gas has a mass of 0.555 g. Its volume is 117 ml at a temperature of 85 °C and a pressure of 753 mm Hg. Find the molar mass of the gas. vih dupe A 74. A m0
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter13: Gases
Section: Chapter Questions
Problem 114AP
Related questions
Question
#68
Transcribed Image Text:66. Use the ideal gas law to complete the table.oed
at a temperature of 85 °C and a pressure of 753 mm Hg.
of 0.171 g at a pressure of 721 mm Hg and a temperature of
72. A sample of gas has a mass of 0.555 g. Its volume is 117 ml
T
1.21 L
205 K
2.39 atm
0.741 mol
298 K
512 torr
0.0131 mol
0.192 L
0.433 atm
-3
20.2 mL
5.71 X 10 mol.
20.4 °C
68. How many moles of gas must be forced into a 48-L fin
to give it a gauge pressure of 32.4 psi at 25 °C? The gauge
pressure is relative to atmospheric pressure. Assume that
atmospheric pressure is 14.7 psi so that the total pressure in
the tire is 47.1 psi.
70. An experiment shows that a 113-mL gas sample has a a
a
32 °C. What is the molar mass of the gas?
of
Find the molar mass of the
gas.
74. A gas mixture confaino
presou
tod partial
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