Basic Chemistry (5th Edition)
5th Edition
ISBN: 9780134138046
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 12.3, Problem 12.19QAP
Use the following table for problems 9.23 to 9.26:
9.25 A solution containing 80 g of KCl in 200 g of H2O at 50°C is cooled at 20°C.
- How many grams of KCl remain in solution at 20°C.?
- How many grams of solid KCl crystallized after cooling?
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111
States of Matter
Understanding conceptual components of the enthalpy of solution
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A small amount of acetonitrile (CH, CN) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These
sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.)
CH,CN
H₂O
B
88
C
Use these sketches to answer the questions in the table below.
The enthalpy of solution AH is negative
soln
when CH3CN dissolves in water. Use this
information to list the stages in order of increasing
enthalpy.
Would heat be absorbed or released if the system
moved from Stage C to D?
What force would oppose or favor the system
moving from Stage C to D? Check all that apply.
1
absorbed
O released
neither absorbed nor released.
none
O ionic bonding force
covalent bonding force…
In a system with an anodic overpotential, the variation of ŋ as a function of
the current density:
1. at low fields is linear 2. at higher fields, it follows Tafel's law
Find the range of current densities for which the overpotential has the same
value as when calculated for cases 1 and 2 (maximum relative difference of
5% with respect to the behavior for higher fields). To which overpotential
range does this correspond?
Data: 10 = 1.5 mA cm², T = 300°C, ẞ = 0.64, R = 8.314 J K 1 mol¹ and F = 96485
C mol-1.
Indicate 10.6 with only one significant figure.
Chapter 12 Solutions
Basic Chemistry (5th Edition)
Ch. 12.1 - Prob. 12.1QAPCh. 12.1 - Prob. 12.2QAPCh. 12.1 - Prob. 12.3QAPCh. 12.1 - Prob. 12.4QAPCh. 12.1 - Prob. 12.5QAPCh. 12.1 - Water is a polar solvent and hexane is a nonpolar...Ch. 12.2 - Prob. 12.7QAPCh. 12.2 - Prob. 12.8QAPCh. 12.2 - Write a balanced equation for the dissociation of...Ch. 12.2 - Prob. 12.10QAP
Ch. 12.2 - Prob. 12.11QAPCh. 12.2 - Prob. 12.12QAPCh. 12.2 - Prob. 12.13QAPCh. 12.2 - Prob. 12.14QAPCh. 12.3 - Prob. 12.15QAPCh. 12.3 - State whether each of the following refers to a...Ch. 12.3 - Prob. 12.17QAPCh. 12.3 - Use the following table for problems 9.23 to 9.26:...Ch. 12.3 - Use the following table for problems 9.23 to 9.26:...Ch. 12.3 - Use the following table for problems 9.23 to 9.26:...Ch. 12.3 - Explain the following observations: More sugar...Ch. 12.3 - Explain the following observations: An open can of...Ch. 12.3 - Prob. 12.23QAPCh. 12.3 - Prob. 12.24QAPCh. 12.3 - Determine whether a solid forms when solutions...Ch. 12.3 - Prob. 12.26QAPCh. 12.4 - Prob. 12.27QAPCh. 12.4 - Prob. 12.28QAPCh. 12.4 - Calculate the mass percent (m/m) for the solute in...Ch. 12.4 - Calculate the mass percent (m/m) for the solute in...Ch. 12.4 - Calculate the mass/volume percent (m/v) for the...Ch. 12.4 - Calculate the mass/volume percent (m/v) for the...Ch. 12.4 - Prob. 12.33QAPCh. 12.4 - Calculate the grams or milliliters of solute...Ch. 12.4 - A mouthwash contains 22.5% (v/v) alcohol. If the...Ch. 12.4 - A bottle of champagne is 11% (v/v) alcohol. If...Ch. 12.4 - Prob. 12.37QAPCh. 12.4 - Prob. 12.38QAPCh. 12.4 - Prob. 12.39QAPCh. 12.4 - Prob. 12.40QAPCh. 12.4 - Prob. 12.41QAPCh. 12.4 - Prob. 12.42QAPCh. 12.4 - Prob. 12.43QAPCh. 12.4 - Prob. 12.44QAPCh. 12.4 - Prob. 12.45QAPCh. 12.4 - Prob. 12.46QAPCh. 12.4 - Prob. 12.47QAPCh. 12.4 - Prob. 12.48QAPCh. 12.4 - Prob. 12.49QAPCh. 12.4 - Prob. 12.50QAPCh. 12.5 - To make tomato soup, you add one can of water to...Ch. 12.5 - Prob. 12.52QAPCh. 12.5 - Prob. 12.53QAPCh. 12.5 - Prob. 12.54QAPCh. 12.5 - Prob. 12.55QAPCh. 12.5 - Prob. 12.56QAPCh. 12.5 - Prob. 12.57QAPCh. 12.5 - Prob. 12.58QAPCh. 12.5 - Prob. 12.59QAPCh. 12.5 - Prob. 12.60QAPCh. 12.6 - Prob. 12.61QAPCh. 12.6 - Prob. 12.62QAPCh. 12.6 - Prob. 12.63QAPCh. 12.6 - Prob. 12.64QAPCh. 12.6 - Prob. 12.65QAPCh. 12.6 - Prob. 12.66QAPCh. 12.7 - Prob. 12.67QAPCh. 12.7 - Prob. 12.68QAPCh. 12.7 - In each pair, identify the solution that will have...Ch. 12.7 - Prob. 12.70QAPCh. 12.7 - Prob. 12.71QAPCh. 12.7 - Prob. 12.72QAPCh. 12.7 - Prob. 12.73QAPCh. 12.7 - Prob. 12.74QAPCh. 12.8 - A 10% (m/v)starch solution is separated from a 1%...Ch. 12.8 - Prob. 12.76QAPCh. 12.8 - Prob. 12.77QAPCh. 12.8 - Prob. 12.78QAPCh. 12.8 - Prob. 12.79QAPCh. 12.8 - Prob. 12.80QAPCh. 12.8 - Each of the following mixtures is placed in a...Ch. 12.8 - Prob. 12.82QAPCh. 12 - Prob. 12.83FUCh. 12 - Prob. 12.84FUCh. 12 - Prob. 12.85FUCh. 12 - Prob. 12.86FUCh. 12 - Prob. 12.87UTCCh. 12 - Prob. 12.88UTCCh. 12 - Prob. 12.89UTCCh. 12 - Prob. 12.90UTCCh. 12 - Prob. 12.91UTCCh. 12 - Prob. 12.92UTCCh. 12 - Prob. 12.93UTCCh. 12 - Prob. 12.94UTCCh. 12 - Prob. 12.95UTCCh. 12 - Prob. 12.96UTCCh. 12 - Prob. 12.97AQAPCh. 12 - Prob. 12.98AQAPCh. 12 - Prob. 12.99AQAPCh. 12 - Prob. 12.100AQAPCh. 12 - Prob. 12.101AQAPCh. 12 - Prob. 12.102AQAPCh. 12 - Prob. 12.103AQAPCh. 12 - Prob. 12.104AQAPCh. 12 - If NaCl has a solubility of 36.0 g in 100. g of...Ch. 12 - Prob. 12.106AQAPCh. 12 - Prob. 12.107AQAPCh. 12 - Prob. 12.108AQAPCh. 12 - Prob. 12.109AQAPCh. 12 - Prob. 12.110AQAPCh. 12 - Prob. 12.111AQAPCh. 12 - Prob. 12.112AQAPCh. 12 - Prob. 12.113AQAPCh. 12 - What is the molarity of a solution containing 15.6...Ch. 12 - Prob. 12.115AQAPCh. 12 - Prob. 12.116AQAPCh. 12 - Prob. 12.117AQAPCh. 12 - Prob. 12.118AQAPCh. 12 - Prob. 12.119AQAPCh. 12 - Prob. 12.120AQAPCh. 12 - Prob. 12.121AQAPCh. 12 - Prob. 12.122AQAPCh. 12 - Prob. 12.123AQAPCh. 12 - Prob. 12.124AQAPCh. 12 - Prob. 12.125AQAPCh. 12 - Prob. 12.126AQAPCh. 12 - Prob. 12.127AQAPCh. 12 - Cadmium reacts with HCl to produce hydrogen gas...Ch. 12 - Prob. 12.129AQAPCh. 12 - Calculate the boiling point of each of the...Ch. 12 - Prob. 12.131AQAPCh. 12 - Prob. 12.132AQAPCh. 12 - Prob. 12.133CQCh. 12 - Write the net ionic equation to show the formation...Ch. 12 - Prob. 12.135CQCh. 12 - Prob. 12.136CQCh. 12 - Prob. 12.137CQCh. 12 - Prob. 12.138CQCh. 12 - Prob. 12.139CQCh. 12 - 9.134 A solution is prepared by dissolving 22.0 g...Ch. 12 - Prob. 12.141CQCh. 12 - Prob. 12.142CQCh. 12 - Prob. 12.143CQCh. 12 - Prob. 12.144CQCh. 12 - Prob. 12.145CQCh. 12 - Prob. 12.146CQ
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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