Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
13th Edition
ISBN: 9780134421353
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 9, Problem 9.81UTC
Interpretation Introduction
To Determine: The reason for a cucumber to wrinkle when placed in a brine solution.
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Using the conditions of spontaneity to deduce the signs of AH and AS
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy
AS.
Note: if you have not been given enough information to decide a sign, select the "unknown" option.
reaction
observations
conclusions
A
This reaction is always spontaneous, but
proceeds slower at temperatures above
120. °C.
ΔΗ is
(pick one)
AS is
(pick one)
ΔΗ is
(pick one)
B
This reaction is spontaneous except above
117. °C.
AS is
(pick one)
ΔΗ is
(pick one)
This reaction is slower below 20. °C than
C
above.
AS is
|(pick one)
?
18
Ar
1
Calculating the pH at equivalence of a titration
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Your answer is incorrect.
0/5
a
A chemist titrates 70.0 mL of a 0.7089 M hydrocyanic acid (HCN) solution with 0.4574M KOH solution at 25 °C. Calculate the pH at equivalence. The pK of
hydrocyanic acid is 9.21.
Round your answer to 2 decimal places.
Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of KOH solution added.
pH
=
11.43]
G
00.
18
Ar
B•
Biological Macromolecules
Naming and drawing the products of aldose oxidation and reduction
aw a Fischer projection of the molecule that would produce L-ribonic acid if it were subjected to mildly oxidizing reaction conditions.
Click and drag to start drawing a
structure.
X
AP
‡
1/5
Naor
Explanation
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Chapter 9 Solutions
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Ch. 9.1 - Prob. 9.1PPCh. 9.1 - Prob. 9.2PPCh. 9.1 - Describe the formation of an aqueous KI solution,...Ch. 9.1 - Describe the formation of an aqueous LiBr...Ch. 9.1 - Prob. 9.5PPCh. 9.1 - Water is a polar solvent and hexane (C6H12)is a...Ch. 9.2 - Prob. 9.7PPCh. 9.2 - NaOHis a strong electrolyte, and CH3OH is a...Ch. 9.2 - Write a balanced equation for the dissociation of...Ch. 9.2 - Write the balanced equation for the dissociation...
Ch. 9.2 - Indicate whether aqueous solutions of each of the...Ch. 9.2 - Prob. 9.12PPCh. 9.2 - Prob. 9.13PPCh. 9.2 - Prob. 9.14PPCh. 9.2 - Calculate the number of equivalents in each of the...Ch. 9.2 - Calculate the number of equivalents in each of the...Ch. 9.2 - An intravenous saline solution contains 154 mEq/L...Ch. 9.2 - An intravenous solution to replace potassium loss...Ch. 9.2 - Prob. 9.19PPCh. 9.2 - A Ringer's solutioncontains the following...Ch. 9.2 - When Michael's blood was tested, the chloride...Ch. 9.2 - After dialysis, the level of magnesium in...Ch. 9.3 - State whether each of the following refers to a...Ch. 9.3 - State whether each of the following refers to a...Ch. 9.3 - Determine whether each of the following solutions...Ch. 9.3 - Determine whether each of the following solutions...Ch. 9.3 - A solution containing 80. g of KClin 200 g of H2O...Ch. 9.3 - A solution containing 80. g of NaNO3 in 75 g of...Ch. 9.3 - Explain the following observations More sugar...Ch. 9.3 - Explain the following observations: And open can...Ch. 9.3 - Predict whether each of the following organic...Ch. 9.3 - Predict whether each of the following organic...Ch. 9.4 - Calculate the mass percent (m/m) for the solute in...Ch. 9.4 - Calculate the mass percent (m/m) for the solute in...Ch. 9.4 - A mouthwash contains 22.5% (v/v) alcohol.If the...Ch. 9.4 - A bottle of champagne is 11% (v/v) alcohol. If...Ch. 9.4 - What is the difference between a 5.0% (m/m)...Ch. 9.4 - What is the difference between a 10.0% (v/v)...Ch. 9.4 - Calculate the mass/volume(m/v) percent for the...Ch. 9.4 - Calculate the mass/volume (m/v) percent for the...Ch. 9.4 - Calculate the grams or milliliters of solute...Ch. 9.4 - Calculate the grams or ml of solute needed to...Ch. 9.4 - Prob. 9.43PPCh. 9.4 - For each of the following solutions, calculate...Ch. 9.4 - Prob. 9.45PPCh. 9.4 - Prob. 9.46PPCh. 9.4 - Calculate the gram of solely needed to prepare...Ch. 9.4 - Calculate the gram of solute needed to prepare...Ch. 9.4 - For each of the following solutions, calculate...Ch. 9.4 - Prob. 9.50PPCh. 9.4 - A patient received 100 mL of a 20.0% (m/v)...Ch. 9.4 - A patient received 250 mL of a 4.0% (m/v) amino...Ch. 9.4 - A patient needs 100. g of glucose in the next 12...Ch. 9.4 - A patient received 2.0 g of NaCl in 8 h. How many...Ch. 9.5 - Prob. 9.55PPCh. 9.5 - Prob. 9.56PPCh. 9.5 - Determine the final volume, in milliliters, of...Ch. 9.5 - Prob. 9.58PPCh. 9.5 - Prob. 9.59PPCh. 9.5 - Prob. 9.60PPCh. 9.5 - You need 500. mL of a 5.0% (m/v) glucose solution....Ch. 9.5 - A doctor ordered 100. mL of 2.0% (m/v)...Ch. 9.6 - Prob. 9.63PPCh. 9.6 - Identify each of the following as characteristics...Ch. 9.6 - A 10% (m/v) starch solution is separated form a 1%...Ch. 9.6 - A 0.1% (m/v) albumin solution is separated form a...Ch. 9.6 - Indicate the compartment (A or B) that will...Ch. 9.6 - Indicate the compartment (A or B) that will...Ch. 9.6 - Will a red blood cell undergo creation, hemolysis,...Ch. 9.6 - Will a red blood cell undergo creation, hemolysis,...Ch. 9.6 - Each of the following mixtures is placed in a...Ch. 9.6 - Prob. 9.72PPCh. 9.6 - 9.73 After her latest dialysis treatment, Michael...Ch. 9.6 - Prob. 9.74PPCh. 9.6 - 9.75 A CaCl2solution is given to increase blood...Ch. 9.6 - 9.76 10 intravenous solution of mannitol is used...Ch. 9 - Prob. 9.77UTCCh. 9 - Prob. 9.78UTCCh. 9 - Prob. 9.79UTCCh. 9 - Prob. 9.80UTCCh. 9 - Prob. 9.81UTCCh. 9 - Whydo lettuces leaves in a salad with after a...Ch. 9 - Prob. 9.83UTCCh. 9 - Prob. 9.84UTCCh. 9 - Prob. 9.85APPCh. 9 - Prob. 9.86APPCh. 9 - Prob. 9.87APPCh. 9 - Prob. 9.88APPCh. 9 - Prob. 9.89APPCh. 9 - Prob. 9.90APPCh. 9 - Prob. 9.91APPCh. 9 - Prob. 9.92APPCh. 9 - Prob. 9.93APPCh. 9 - Prob. 9.94APPCh. 9 - Prob. 9.95APPCh. 9 - Prob. 9.96APPCh. 9 - Prob. 9.97APPCh. 9 - Prob. 9.98APPCh. 9 - Prob. 9.99APPCh. 9 - Prob. 9.100APPCh. 9 - Prob. 9.101APPCh. 9 - Prob. 9.102APPCh. 9 - Prob. 9.103APPCh. 9 - Prob. 9.104APPCh. 9 - Prob. 9.105APPCh. 9 - Prob. 9.106APPCh. 9 - Calculate the final concentration of the solution...Ch. 9 - Calculate the final concentration of the solution...Ch. 9 - Prob. 9.109APPCh. 9 - Prob. 9.110APPCh. 9 - Prob. 9.111APPCh. 9 - Prob. 9.112APPCh. 9 - Prob. 9.113CPCh. 9 - 9.114. In a laboratory experiment, a 15.0-sample...Ch. 9 - Prob. 9.115CPCh. 9 - Prob. 9.116CPCh. 9 - Prob. 9.117CPCh. 9 - Prob. 9.118CPCh. 9 - Prob. 13CICh. 9 - Automobile exhaust is a major cause of air...Ch. 9 - Bleach is often added to a wash to remove stains...Ch. 9 - The compound butyric acid gives rancid butter its...Ch. 9 - Methane is a major component of purified natural...Ch. 9 - The active ingredient in Turns is calcium...Ch. 9 - Tamiflu (oseltamivir), C16H28N2O4, is an antiviral...Ch. 9 - Prob. 20CI
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