Chemistry: The Central Science (13th Edition)
13th Edition
ISBN: 9780321910417
Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus
Publisher: PEARSON
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Chapter 21, Problem 67E
Aerosols are important components of the atmosphere. Does the presence of aerosols in the atmosphere increase or decrease the amount of sunlight that arrives at the Earth’s surface, compared to an “aerosol-free” atmosphere? Explain your reasoning.
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A bubble of air escaping from a diver's mask rises from a depth of 155 ft to the surface where the pressure is 1.00 atm. Initially, the
bubble has a volume of 10.0 mL. Assuming none of the air dissolves in the water, how many times larger is the bubble just as it reaches
the surface?
Use this data:
1. The density of seawater is approximately 1.025 g mL!
2. The density of mercury is 13.6 g mL
47
times larger
Use your answer to explain why scuba divers constantly exhale as they slowly rise from a deep dive.
Since the pressure decreases by a factor of approximately
factor of approximately 47
the volume must
Increase : by a
Divers exhale to decreases the amount of gas in their lungs, so it does not expand : to a volume larger than the
diver's lungs.
Part C
in Liters (L)
At 25 °C and 1.0 atm pressure, what is the minimum quantity of dry air needed to
combust 1.2 L of CH4 (g) completely to CO2(g)? Remember that oxygen is
present in the atmosphere to the extent of 209,480 parts per million.
Express your answer using two significant figures.
A bubble of air escaping from a diver's mask rises from a depth of 159 ft to the surface where the pressure is 1.00 atm. Initially, the
bubble has a volume of 10.0 mL. Assuming none of the air dissolves in the water, how many times larger is the bubble just as it reaches
the surface?
Use this data:
1. The density of seawater is approximately 1.025 g mL1
2. The density of mercury is 13.6 g mL-1
times larger
Use your answer to explain why scuba divers constantly exhale as they slowly rise from a deep dive.
Since the pressure
by a factor of approximately
i
, the volume must
by a factor of approximately
i
Divers exhale to
the amount of gas in their lungs, so it does not
to a volume
than the
diver's lungs.
eTextbook and Media
Hint
Assistance Used
Pressure is inversely proportional to the volume.
Set up P1V1 = P2V2 and solve for V2 after you determine the pressure at 159 feet below the surface.
Chapter 21 Solutions
Chemistry: The Central Science (13th Edition)
Ch. 21.1 - Prob. 21.1.1PECh. 21.1 - Prob. 21.1.2PECh. 21.1 - Prob. 21.2.1PECh. 21.1 - Prob. 21.2.2PECh. 21.2 - Which aqueous solution will have the lowest...Ch. 21.2 - Prob. 21.3.2PECh. 21.3 - Prob. 21.4.1PECh. 21.3 - Prob. 21.4.2PECh. 21.4 - Prob. 21.5.1PECh. 21.4 - Practice Exercise 2
Camphor (C10 H16 O) melts at...
Ch. 21.4 - Prob. 21.6.1PECh. 21.4 - Prob. 21.6.2PECh. 21.4 - Prob. 21.7.1PECh. 21.4 - Rank the contents of the following containers in...Ch. 21.6 - Prob. 21.8.1PECh. 21.6 - Consider two ionic solids, both composed of singly...Ch. 21 - Prob. 1DECh. 21 - Would you expect stearic acid, CH3 (CH2)16COOH, to...Ch. 21 - 13.43 Calculate the morality of the following...Ch. 21 - Commercial aqueous nitric acid has a density of...Ch. 21 - Prob. 4ECh. 21 - Prob. 5ECh. 21 - Prob. 6ECh. 21 - Prob. 7ECh. 21 - If the experiment in Figure 14.2 is run for 60 s,...Ch. 21 - Prob. 9ECh. 21 - Indicate the principal type of solute-solvent...Ch. 21 - When ammonium chloride dissolves in water, the...Ch. 21 - Prob. 12ECh. 21 - KBr is relatively soluble in water, yet its...Ch. 21 - The solubility of MnSO4 . H2 O in water at 20 C is...Ch. 21 - Prob. 15ECh. 21 - Prob. 16ECh. 21 - Prob. 17ECh. 21 - Prob. 18ECh. 21 - Prob. 19ECh. 21 - Prob. 20ECh. 21 - Prob. 21ECh. 21 - Indicate whether each statement is true or false:...Ch. 21 - 13.36 Indicate whether each statement is true or...Ch. 21 - Prob. 24ECh. 21 - Prob. 25ECh. 21 - Prob. 26ECh. 21 - Prob. 27ECh. 21 - Prob. 28ECh. 21 - Prob. 29ECh. 21 - Calculate the molality of each of the following...Ch. 21 - (a) What is the molality of a solution formed by...Ch. 21 - Prob. 32ECh. 21 - Prob. 33ECh. 21 - Prob. 34ECh. 21 - The density of toluene (C7H8) is 0.867 g\mL, and...Ch. 21 - Calculate the number of moles of solute present in...Ch. 21 - Prob. 37ECh. 21 - Prob. 38ECh. 21 - Describe how you would prepare each of the...Ch. 21 - Prob. 40ECh. 21 - Prob. 41ECh. 21 - Prob. 42ECh. 21 - Prob. 43ECh. 21 - Prob. 44ECh. 21 - Prob. 45ECh. 21 - Prob. 46ECh. 21 - Prob. 47ECh. 21 - Prob. 48ECh. 21 - (a) Calculate the vapor pressure of water above a...Ch. 21 - Prob. 50ECh. 21 - Prob. 51ECh. 21 - Prob. 52ECh. 21 - Prob. 53ECh. 21 - Using data from Table 13.3, calculate the freezing...Ch. 21 - Prob. 55ECh. 21 - Prob. 56ECh. 21 - Prob. 57ECh. 21 - Prob. 58ECh. 21 - Prob. 59ECh. 21 - Prob. 60ECh. 21 - Prob. 61ECh. 21 - The osmotic pressure of a 0.010 M aqueous solution...Ch. 21 - Prob. 63ECh. 21 - (a) Do colloids made only of gases exist? Why or...Ch. 21 - Prob. 65ECh. 21 - An “emulsifying agent” is a compound that helps...Ch. 21 - Aerosols are important components of the...Ch. 21 - Prob. 68ECh. 21 - Soaps consist of compounds such as sodium state,...Ch. 21 - Most fish need at least 4 ppm dissolved O2 in...Ch. 21 - The presence of the radioactive gas radon (Rn) in...Ch. 21 - Prob. 72AECh. 21 - Prob. 73AECh. 21 - The maximum allowable concentration of lead in...Ch. 21 - Prob. 75AECh. 21 - Prob. 76AECh. 21 - Prob. 77AECh. 21 - Prob. 78AECh. 21 - The normal boiling point of ethanol, is 78.4 0C....Ch. 21 - Prob. 80AECh. 21 - Prob. 81AECh. 21 - Prob. 82AECh. 21 - Prob. 83AECh. 21 - Prob. 84AECh. 21 - Prob. 85AECh. 21 - Prob. 86AECh. 21 - Prob. 87AECh. 21 - Prob. 88AECh. 21 - Prob. 89IECh. 21 - Prob. 90IECh. 21 - Prob. 91IECh. 21 - Prob. 92IECh. 21 - Prob. 93IECh. 21 - Prob. 94IE
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- A bubble of air escaping from a diver's mask rises from a depth of 158 ft to the surface where the pressure is 1.00 atm. Initially, the bubble has a volume of 10.0 mL. Assuming none of the air dissolves in the water, how many times larger is the bubble just as it reaches the surface? Use this data: 1. The density of seawater is approximately 1.025g mL1 2. The density of mercury is 13.6 g mL-1 i times larger Use your answer to explain why scuba divers constantly exhale as they slowly rise from a deep dive. Since the pressure decreases by a factor of approximately , the volume must by increase a factor of approximately i Divers exhale to decreases the amount of gas in their lungs, so it does not expand to a volume larger than the diver's lungs.arrow_forwardA bubble of air escaping from a diver's mask rises from a depth of 180 ft to the surface where the pressure is 1.00 atm. Initially, the bubble has a volume of 10.0 mL. Assuming none of the air dissolves in the water, how many times larger is the bubble just as it reaches the surface? Use this data: 1. The density of seawater is approximately 1.025 g mL1 2. The density of mercury is 13.6 g mL1 i times larger Use your answer to explain why scuba divers constantly exhale as they slowly rise from a deep dive. Since the pressure v by a factor of approximately the volume must v by a factor of approximately Divers exhale to the amount of gas in their lungs, so it does not to a volume than the diver's lungs. decreases increases eTextbook and Media Hint Assistance Used Pressure is inversely proportional to the volume. Set up P,V1- P2V2 and solve for V2 after you determine the pressure at 180 feet below the surface.arrow_forwardDistillation is a physical process of separation of liquids that differ in what physical property? Freezing point Degree of size Solubility Melting Point Boiling pointarrow_forward
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- A bubble of air escaping from a diver's mask rises from a depth of 163 ft to the surface where the pressure is 1.00 atm. Initially, the bubble has a volume of 10.0 mL. Assuming none of the air dissolves in the water, how many times larger is the bubble just as it reaches the surface? Use this data: 1. The density of seawater is approximately 1.025 g mL1 2. The density of mercury is 13.6 g mL 1 i times larger Use your answer to explain why scuba divers constantly exhale as they slowly rise from a deep dive. v by a factor of approximately , the volume must by a Since the pressure i factor of approximately i increase decrease Divers exhale to the amount of gas in their lungs, so it does not v to a volume rrarrthe diver's lungs.arrow_forwardShould we ignore changes in density of water when dealing with high concentration of sludge or liquid chemicals, explain your answer?arrow_forward7. Identify and define two processes by which water naturally changes from a solid or liquid to a gas. 8. Define exchange pool and reservoir, and identify an example of each in the water cycle. 9. State three ways that carbon dioxide enters Earth's atmosphere. 10. What is climate? How does it differ from the weather? 11. What is a rain shadow? 12. How does climate influence plant growth? 13. What is the photic zone of the ocean?arrow_forward
- Which substance is found at high concentrations in surface waters and decreasing concentrations with depth and why? carbon dioxide (CO2) OR oxygen (O2)arrow_forwardGive 5 examples of freshwater organisms and their dissolved oxygen requirements.arrow_forwardGiven that the concentration of CH4 in the atmosphere is 1.8 ppm, calculate the total mass of this gas that is present in the atmosphere. Note that the total mass of the atmosphere is 5.1 x 1018 kg and that its average molar mass is 29.0 g/mol.arrow_forward
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY