Concept explainers
(a)
Interpretation:
The number of moles of He gas at STP and 5.0 L volume needs to be determined.
Concept Introduction:
The ideal gas equation is represented as follows:
Here, n is number of moles, P is pressure, V is volume, R is Universal gas constant and T is temperature.
In the STP condition the volume occupied by one mole gas = 22.4L
The conversion factor
(b)
Interpretation:
The number of moles of He gas at STP and 11.2 L volume needs to be determined.
Concept Introduction:
The ideal gas equation is represented as follows:
Here, n is number of moles, P is pressure, V is volume, R is Universal gas constant and T is temperature.
In the STP condition the volume occupied by one mole gas = 22.4L
The conversion factor
(c)
Interpretation:
The number of moles of He gas at STP and 50.0 mL volume needs to be determined.
Concept Introduction:
The ideal gas equation is represented as follows:
Here, n is number of moles, P is pressure, V is volume, R is Universal gas constant and T is temperature.
In the STP condition the volume occupied by one mole gas = 22.4L
The conversion factor
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
CONNECT IA GENERAL ORGANIC&BIO CHEMISTRY
- 5-111 Diving, particularly SCUBA (Self-Contained Underwater Breathing Apparatus) diving, subjects the body to increased pressure. Each 10. m (approximately 33 ft) of water exerts an additional pressure of 1 atm on the body. (a) What is the pressure on the body at a depth of 100. ft? (b) The partial pressure of nitrogen gas in air at 1 atm is 593 mm Hg. Assuming a SCUBA diver breathes compressed air, what is the partial pressure of nitrogen entering the lungs from a breathing tank at a depth of 100. ft? (c) The partial pressure of oxygen gas in the air at 2 atm is 158 mm Hg. What is the partial pressure of oxygen in the air in the lungs at a depth of 100. ft? (d) Why is it absolutely essential to exhale vigorously in a rapid ascent from a depth of 100. ft?arrow_forward51 What volume of oxygen at 24 C and 0.88 atm is needed to completely react via combustion with 45 g of methane gas?arrow_forwardA person exhales about 5.8 102 L of carbon dioxide per day (at STP). The carbon dioxide exhaled by an astronaut is absorbed from the air of a space capsule by reaction with lithium hydroxide, LiOH. 2LiOH(s)+CO2(g)Li2CO3(s)+H2O(l) How many grams of lithium hydroxide are required per astronaut per day?arrow_forward
- 5-114 Carbon dioxide gas, saturated with water vapor, can be produced by the addition of aqueous acid to calcium carbonate based on the following balanced net ionic equation: (a) How many moles of wet CO (g), collected at 60.°C and 774 torr total pressure, are produced by the complete reaction of 10.0 g of CaCO3 with excess acid? (b) What volume does this wet CO2 occupy? (c) What volume would the CO2 occupy at 774 torr if a desiccant (a chemical drying agent) were added to remove the water? The vapor pressure of water at 60.°C is 149.4 mm Hg.arrow_forwardHow many liters of HCI gas, measured at 30.0 C and 745 torr, are required to prepare 1.25 L of a 3.20-M solution of hydrochloric acid?arrow_forwardExplain how the volume of the bubbles exhausted by a scuba diver (Figure 9.16) change as they rise to the surface, assuming that they remain intact.arrow_forward
- How would the graph in Figure 9.12 change if the number of moles of gas in the sample used to determine the curve were doubled?arrow_forwardA 0.0130-g sample of a gas with an empirical formula of C4H5 is placed in a 165-mL flask. It has a pressure of 13.7 mm Hg at 22.5 C. What is the molecular formula of the compound?arrow_forwardA typical barometric pressure in Redding. California, is about 750 mm Hg. Calculate this pressure in atm and kPa.arrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStax
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning