Basic Chemistry (5th Edition)
5th Edition
ISBN: 9780134138046
Author: Karen C. Timberlake
Publisher: PEARSON
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Chapter 13, Problem 13.56UTC
Interpretation Introduction
Interpretation:
‘Reaction is exothermic or endothermic’ should be identified.
Concept introduction:
Equilibrium is the condition at which the rate of formation of product is equal to rate of disappearance of reactant.
Exothermic reaction, are the reaction which liberates energy and the temperature of the product is lower than reactants to proceed the reaction.
Endothermic reaction, are the reaction which absorbs energy and the temperature of the product is higher than reactants to proceed the reaction.
Given:
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In the video, we looked at the absorbance of a certain substance and how it varies
depending on what wavelength of light we are looking at. Below is a similar scan of a
different substance. What color BEST describes how this substance will appear?
Absorbance (AU)
Violet
Blue
Green
Orange
1.2
1.0-
0.8-
0.6-
0.4-
0.2
0.0
450
500
550
600
650
700
Wavelength (nm)
violet
indigo
blue
green
yellow orange
red
Red
O Cannot tell from this information
In the above graph, what causes -450 nm wavelength of light to have a higher
absorbance than light with a -550 nm wavelength? Check all that are true.
The distance the light travels is different
The different data points are for different substances
The concentration is different at different times in the experiment
Epsilon (molar absortivity) is different at different wavelengths
5. a. Data were collected for Trial 1 to determine the molar mass of a nonvolatile solid solute when dissolved in cyclo-
hexane. Complete the table for the analysis (See Report Sheet). Record calculated values with the correct number
of significant figures.
B. Freezing Point of Cyclohexane plus
Calculation Zone
Unknown Solute
2. Mass of cyclohexane (g)
10.14
Part C.4
3. Mass of added solute (g)
0.255
C. Calculations
1. k; for cyclohexane (°C⚫ kg/mol)
20.0
2. Freezing point change, AT, (°C)
3.04
Part C.6
3. Mass of cyclohexane in solution (kg)
4. Moles of solute, total (mol)
Show calculation.
5. Mass of solute in solution, total (g)
6. Molar mass of solute (g/mol)
Show calculation.
Chapter 13 Solutions
Basic Chemistry (5th Edition)
Ch. 13.1 - What is meant by the rate of a reaction? Why does...Ch. 13.1 - How does a catalyst affect the activation energy?...Ch. 13.1 - Prob. 13.3QAPCh. 13.1 - Prob. 13.4QAPCh. 13.1 - Prob. 13.5QAPCh. 13.1 - Prob. 13.6QAPCh. 13.2 - Prob. 13.7QAPCh. 13.2 - Prob. 13.8QAPCh. 13.2 - Prob. 13.9QAPCh. 13.2 - Prob. 13.10QAP
Ch. 13.2 - Prob. 13.11QAPCh. 13.2 - Prob. 13.12QAPCh. 13.3 - Prob. 13.13QAPCh. 13.3 - Prob. 13.14QAPCh. 13.3 - Prob. 13.15QAPCh. 13.3 - Prob. 13.16QAPCh. 13.3 - Prob. 13.17QAPCh. 13.3 - Prob. 13.18QAPCh. 13.3 - Prob. 13.19QAPCh. 13.3 - Prob. 13.20QAPCh. 13.3 - Prob. 13.21QAPCh. 13.3 - Identify each of the following as a homogeneous or...Ch. 13.3 - Prob. 13.23QAPCh. 13.3 - Prob. 13.24QAPCh. 13.3 - Prob. 13.25QAPCh. 13.3 - Prob. 13.26QAPCh. 13.4 - Prob. 13.27QAPCh. 13.4 - Prob. 13.28QAPCh. 13.4 - Prob. 13.29QAPCh. 13.4 - Prob. 13.30QAPCh. 13.4 - Prob. 13.31QAPCh. 13.4 - Prob. 13.32QAPCh. 13.4 - Prob. 13.33QAPCh. 13.4 - The Kc for the following reaction at 225C is...Ch. 13.5 - Prob. 13.35QAPCh. 13.5 - Ammonia is produced by reacting nitrogen gas and...Ch. 13.5 - Prob. 13.37QAPCh. 13.5 - Prob. 13.38QAPCh. 13.5 - Prob. 13.39QAPCh. 13.5 - Prob. 13.40QAPCh. 13.6 - Prob. 13.41QAPCh. 13.6 - Prob. 13.42QAPCh. 13.6 - Prob. 13.43QAPCh. 13.6 - Prob. 13.44QAPCh. 13.6 - Prob. 13.45QAPCh. 13.6 - Prob. 13.46QAPCh. 13.6 - Prob. 13.47QAPCh. 13.6 - Prob. 13.48QAPCh. 13 - Prob. 13.49FUCh. 13 - Prob. 13.50FUCh. 13 - Prob. 13.51UTCCh. 13 - Prob. 13.52UTCCh. 13 - Prob. 13.53UTCCh. 13 - Prob. 13.54UTCCh. 13 - Prob. 13.55UTCCh. 13 - Prob. 13.56UTCCh. 13 - Prob. 13.57AQAPCh. 13 - For each of the following changes at equilibrium,...Ch. 13 - Prob. 13.59AQAPCh. 13 - Prob. 13.60AQAPCh. 13 - Consider the reaction: (10.3) 2NH3gN2g+3H2g a...Ch. 13 - Consider the reaction: (10.3) 2SO2g+O2g2SO3g a...Ch. 13 - Prob. 13.63AQAPCh. 13 - Prob. 13.64AQAPCh. 13 - According to Le Châtelier’s principle, does the...Ch. 13 - Prob. 13.66AQAPCh. 13 - Prob. 13.67AQAPCh. 13 - Prob. 13.68AQAPCh. 13 - Prob. 13.69AQAPCh. 13 - Prob. 13.70AQAPCh. 13 - Prob. 13.71AQAPCh. 13 - Prob. 13.72AQAPCh. 13 - Prob. 13.73AQAPCh. 13 - A saturated solution of copper (I) chloride, CuCl...Ch. 13 - A saturated solution of manganese (II) hydroxide,...Ch. 13 - Prob. 13.76AQAPCh. 13 - What is the molar solubility, S, of CdS if it has...Ch. 13 - Prob. 13.78AQAPCh. 13 - Prob. 13.79CQCh. 13 - Prob. 13.80CQCh. 13 - Prob. 13.81CQCh. 13 - Prob. 13.82CQCh. 13 - Prob. 13.83CQCh. 13 - Indicate if you would increase or decrease the...Ch. 13 - The antacid milk of magnesia, which contains MgOH2...Ch. 13 - Prob. 13.86CQ
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