Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition) - Standalone book
12th Edition
ISBN: 9780321908445
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 8.7, Problem 8.45QAP
A typical air sample in the lungs contains oxygen at 100 mmHg, nitrogen at 573 mmHg, carbon dioxide at 40 mmHg, and water vapor at 47 mmHg. Why are these pressures called partial pressures?
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Identifying the major species in weak acid or weak base equilibria
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equilibrium. You can leave out water itself.
Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the
formulas of the species that will act as neither acids nor bases in the 'other' row.
You will find it useful to keep in mind that HCN is a weak acid.
acids:
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to 1.0 L of a 1.2M HCN
solution.
bases:
☑
other:
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acids:
1.0 L of a solution that is
bases:
0.3M in both HCN and
KCN.
other:
0,0,...
?
00.
18
Ar
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Identifying the major species in weak acid or weak base equilibria
The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at
equilibrium. You can leave out water itself.
Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the
formulas of the species that will act as neither acids nor bases in the 'other' row.
You will find it useful to keep in mind that HF is a weak acid.
acids:
0.2 mol of KOH is added to
1.0 L of a 0.5 M HF
solution.
bases:
Х
other: ☐
acids:
0.10 mol of HI is added to
1.0 L of a solution that is
1.4M in both HF and NaF.
bases:
other: ☐
0,0,...
ด
?
18
Ar
Identifying the major species in weak acid or weak base equilibria
The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at
equilibrium. You can leave out water itself.
Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the
formulas of the species that will act as neither acids nor bases in the 'other' row.
You will find it useful to keep in mind that NH3 is a weak base.
acids: ☐
1.8 mol of HCl is added to
1.0 L of a 1.0M NH3
bases: ☐
solution.
other: ☐
0.18 mol of HNO3 is added
to 1.0 L of a solution that is
1.4M in both NH3 and
NH₁Br.
acids:
bases: ☐
other: ☐
0,0,...
?
000
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B
1
Chapter 8 Solutions
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition) - Standalone book
Ch. 8.1 - Prob. 8.1QAPCh. 8.1 - Use the kinetic molecular theory of gases to...Ch. 8.1 - Identify the property of a gas that is measured in...Ch. 8.1 - Identify the property of a gas that is measured in...Ch. 8.1 - Prob. 8.5QAPCh. 8.1 - Prob. 8.6QAPCh. 8.1 - Prob. 8.7QAPCh. 8.1 - Prob. 8.8QAPCh. 8.2 - Why do scuba divers need to exhale air when they...Ch. 8.2 - Why does a sealed bag of chips expand when you...
Ch. 8.2 - Prob. 8.11QAPCh. 8.2 - A balloon is filled with helium gas. When each of...Ch. 8.2 - Prob. 8.13QAPCh. 8.2 - Prob. 8.14QAPCh. 8.2 - A 10.0-L balloon contains helium gas at a pressure...Ch. 8.2 - Prob. 8.16QAPCh. 8.2 - A sample of nitrogen N2 has a volume of 50.0 L at...Ch. 8.2 - A sample of methane CH4 has a volume of 25 mL at a...Ch. 8.2 - Prob. 8.19QAPCh. 8.2 - Prob. 8.20QAPCh. 8.2 - Prob. 8.21QAPCh. 8.2 - Prob. 8.22QAPCh. 8.3 - Select the diagram that shows the final volume of...Ch. 8.3 - Indicate whether the final volume of gas in each...Ch. 8.3 - A sample of neon initially has a volume of 2.50 L...Ch. 8.3 - Prob. 8.26QAPCh. 8.3 - A balloon contains 2500 ml- of helium gas at 75C ....Ch. 8.3 - Prob. 8.28QAPCh. 8.4 - Prob. 8.29QAPCh. 8.4 - Prob. 8.30QAPCh. 8.4 - Calculate the final temperature, in degrees...Ch. 8.4 - Calculate the final temperature, in degrees...Ch. 8.5 - Prob. 8.33QAPCh. 8.5 - A sample of argon gas has a volume of 735 mL at a...Ch. 8.5 - A 124-mL bubble of hot gas initially at 212 °C and...Ch. 8.5 - A scuba diver 60 ft below the ocean surface...Ch. 8.6 - What happens to the volume of a bicycle tire or a...Ch. 8.6 - Prob. 8.38QAPCh. 8.6 - Prob. 8.39QAPCh. 8.6 - Prob. 8.40QAPCh. 8.6 - Prob. 8.41QAPCh. 8.6 - Prob. 8.42QAPCh. 8.6 - Prob. 8.43QAPCh. 8.6 - Prob. 8.44QAPCh. 8.7 - A typical air sample in the lungs contains oxygen...Ch. 8.7 - Prob. 8.46QAPCh. 8.7 - Prob. 8.47QAPCh. 8.7 - In a gas mixture, the partial pressures are argon...Ch. 8.7 - A gas mixture containing oxygen, nitrogen, and...Ch. 8.7 - A gas mixture containing oxygen, nitrogen, and...Ch. 8.7 - Prob. 8.51QAPCh. 8.7 - Prob. 8.52QAPCh. 8 - Two flasks of equal volume and at the same...Ch. 8 - Prob. 8.54UTCCh. 8 - At 100 °C, which of the following diagrams (1, 2,...Ch. 8 - Indicate which diagram (1, 2, or 3) represents the...Ch. 8 - A balloon is filled with helium gas with a partial...Ch. 8 - Prob. 8.58UTCCh. 8 - Prob. 8.59UTCCh. 8 - Prob. 8.60UTCCh. 8 - Prob. 8.61AQAPCh. 8 - Prob. 8.62AQAPCh. 8 - Prob. 8.63AQAPCh. 8 - Prob. 8.64AQAPCh. 8 - A weather balloon has a volume of 750 L when...Ch. 8 - Prob. 8.66AQAPCh. 8 - A weather balloon is partially filled with Helium...Ch. 8 - Prob. 8.68AQAPCh. 8 - A gas mixture contains Oxygen and Argon at partial...Ch. 8 - Prob. 8.70AQAPCh. 8 - Prob. 8.71CQCh. 8 - You are doing research on planet X. The...Ch. 8 - Prob. 8.73CQCh. 8 - Prob. 8.74CQCh. 8 - Prob. 8.75CQCh. 8 - Prob. 8.76CQ
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