
CHEMISTRY-MASTERINGCHEMISTRY W/ETEXT
8th Edition
ISBN: 9780135204634
Author: Robinson
Publisher: PEARSON
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Question
Chapter 9, Problem 9.31P
Interpretation Introduction
(a)
Interpretation:
The PV work needs to be calculated in kJ. The direction of flow of work energy needs to be determined.
Concept introduction:
The PV work can be calculated as follows:
Here,
Interpretation Introduction
(b)
Interpretation:
The change in internal energy for the combustion of 1 mol of ethanol needs to be determined.
Concept introduction:
The enthalpy is sum of types of internal energies.
Thus,
Here,
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Students have asked these similar questions
1. Consider the following molecular-level diagrams of a titration.
O-HA molecule
-Aion
°°
о
°
(a)
о
(b)
(c)
(d)
a. Which diagram best illustrates the microscopic representation for the
EQUIVALENCE POINT in a titration of a weak acid (HA) with sodium.
hydroxide?
(e)
Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single
file upload below:
Review of this week's reaction:
H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O --->
H₂NC(=NH)N(CH3)CH2COOH (creatine)
Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing
the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts)
Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts)
Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3
pts)
NH2(C=NH)-N(CH)CH2COOH
This bond
Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem
Q9 is valid). (4 pts)
Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should
be ready to understand the first half of one of the Grignard reactions presented in a past…
Propose a synthesis pathway for the
following transformations. b) c) d)
Chapter 9 Solutions
CHEMISTRY-MASTERINGCHEMISTRY W/ETEXT
Ch. 9 - Prob. 9.1PCh. 9 - Conceptual APPLY 9.2 How much work is done in...Ch. 9 - PRACTICE 9.3 The reaction between hydrogen and...Ch. 9 - Conceptual APPLY 9.4 The following reaction has E...Ch. 9 - Use the following thermo chemical equation to...Ch. 9 - APPLY 9.6 Approximately, 1.8106 kJ of energy is...Ch. 9 - Classify the following reaction as end o- or ex...Ch. 9 - APPLY 9.8 Instant hot packs and cold packs contain...Ch. 9 - PRACTICE 9.9 What is the specific heat of lead in...Ch. 9 - APPLY 9.10 Calculate the heat capacity (C) of a...
Ch. 9 - PRACTICE 9.11 When 25.0 mL of 1.0 M H2SO4 is added...Ch. 9 - Prob. 9.12ACh. 9 - When 1.00 g of toluene, C7H8, is burned in a bomb...Ch. 9 - Prob. 9.14PCh. 9 - Water gas is the name for the mixture of CO and H2...Ch. 9 - Prob. 9.16ACh. 9 - Prob. 9.17PCh. 9 - Prob. 9.18ACh. 9 - Use the data in Table 9.3 to calculate an...Ch. 9 - Benzene ( C6H6 ) has two resonance structures,...Ch. 9 - Prob. 9.21PCh. 9 - Prob. 9.22ACh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24ACh. 9 - Prob. 9.25PCh. 9 - Prob. 9.26ACh. 9 - Prob. 9.27PCh. 9 - Prob. 9.28PCh. 9 - Prob. 9.29PCh. 9 - Prob. 9.30PCh. 9 - Prob. 9.31PCh. 9 - Prob. 9.32PCh. 9 - PROBLEM 9.33 A 12.0 gallon hold 39.9 kg of...Ch. 9 - A piece of dry ice (solid CO2) is placed inside a...Ch. 9 - Imagine a reaction that results in a change in...Ch. 9 - 9.32 Redraw the following diagram to represent the...Ch. 9 - 9.33 A reaction is carried out in a cylinder...Ch. 9 - Prob. 9.38CPCh. 9 - Prob. 9.39CPCh. 9 - Prob. 9.40CPCh. 9 - Prob. 9.41CPCh. 9 - Prob. 9.42CPCh. 9 - Prob. 9.43CPCh. 9 - What is the difference between heat and...Ch. 9 - What is internal energy?Ch. 9 - Prob. 9.46SPCh. 9 - Prob. 9.47SPCh. 9 - Which of the following are state functions, and...Ch. 9 - Prob. 9.49SPCh. 9 - Calculate the work done in joules by a chemical...Ch. 9 - The addition of H2 to C=C double bonds is an...Ch. 9 - Prob. 9.52SPCh. 9 - Prob. 9.53SPCh. 9 - 9.50 A reaction inside a cylindrical container...Ch. 9 - At a constant pressure of 0.905 atm, a chemical...Ch. 9 - RANWhen a sample of a hydrocarbon fuel is ignited...Ch. 9 - Used in welding metals, the reaction of acetylene...Ch. 9 - What is the difference between the internal energy...Ch. 9 - Prob. 9.59SPCh. 9 - The explosion of 2.00 mol of solid trinitrotoluene...Ch. 9 - The reaction between hydrogen and oxygen to yield...Ch. 9 - The enthalpy change for the reaction of 50.0 mL of...Ch. 9 - Assume that a particular reaction evolves 244 kJ...Ch. 9 - What is the enthalpy change ( H ) for a reaction...Ch. 9 - Prob. 9.65SPCh. 9 - Indicate the direction of heat transfer between...Ch. 9 - Indicate the direction of heat transfer between...Ch. 9 - The familiar "ether" used as an anesthetic agent...Ch. 9 - How much energy in kilojoules is required to...Ch. 9 - Aluminum metal reacts with chlorine with a...Ch. 9 - How much heat in kilojoules is evolved or absorbed...Ch. 9 - How much heat in kilojoules is evolved or absorbed...Ch. 9 - Nitromethane sometimes used as a fuel in drag...Ch. 9 - Prob. 9.74SPCh. 9 - How much heat in kilojoules is evolved or absorbed...Ch. 9 - Prob. 9.76SPCh. 9 - Prob. 9.77SPCh. 9 - Sodium metal is sometimes used as a cooling agent...Ch. 9 - Prob. 9.79SPCh. 9 - Assuming that Coca-Cola has the same specific heat...Ch. 9 - Calculate the amount of heat required to raise the...Ch. 9 - Instant cold packs used to treat athletic injuries...Ch. 9 - Instant hot packs contain a solid and a pouch of...Ch. 9 - When 1.045 g of CaO is added to 50.0 mL of water...Ch. 9 - When a solution containing 8.00 g of NaOH in 50.0...Ch. 9 - When 0.187 g of benzene, C6H6 , is burned in a...Ch. 9 - When 0.500 g of ethanol, C2H6O, is burned in a...Ch. 9 - When 1.50 g of magnesium metal is allowed to react...Ch. 9 - A 110.0 g piece of molybdenum metal is heated to...Ch. 9 - Citric acid has three dissociable hydrogens. When...Ch. 9 - Prob. 9.91SPCh. 9 - Prob. 9.92SPCh. 9 - Prob. 9.93SPCh. 9 - The industrial degreasing solvent methylene...Ch. 9 - Hess's law can be used to calculate reaction...Ch. 9 - Find H in kilojoules for the reaction of nitric...Ch. 9 - Set up a Hess's law cycle, and use the following...Ch. 9 - Prob. 9.98SPCh. 9 - Prob. 9.99SPCh. 9 - What phase of matter is associated with the...Ch. 9 - What is the phase of the standard states of the...Ch. 9 - Write balanced equations for the formation of the...Ch. 9 - Prob. 9.103SPCh. 9 - Prob. 9.104SPCh. 9 - Prob. 9.105SPCh. 9 - The standard enthalpy change for the reaction of...Ch. 9 - Prob. 9.107SPCh. 9 - Styrene ( C8H8 ), the precursor of polystyrene...Ch. 9 - Prob. 9.109SPCh. 9 - Prob. 9.110SPCh. 9 - Prob. 9.111SPCh. 9 - Prob. 9.112SPCh. 9 - Prob. 9.113SPCh. 9 - Prob. 9.114SPCh. 9 - Prob. 9.115SPCh. 9 - Prob. 9.116SPCh. 9 - Isooctane, C8H18, is the component of gasoline...Ch. 9 - Calculate an approximate heat of combustion for...Ch. 9 - Use the data in Table 9.3 to calculate an...Ch. 9 - Use the average bond dissociation energies in...Ch. 9 - Use the bond dissociation energies in Table 9.3 to...Ch. 9 - Prob. 9.122SPCh. 9 - Prob. 9.123SPCh. 9 - Prob. 9.124SPCh. 9 - Prob. 9.125SPCh. 9 - Tell whether the entropy changes for the following...Ch. 9 - Prob. 9.127SPCh. 9 - Prob. 9.128SPCh. 9 - Prob. 9.129SPCh. 9 - Prob. 9.130SPCh. 9 - Prob. 9.131SPCh. 9 - Tell whether reactions with the following values...Ch. 9 - Tell whether reactions with the following values...Ch. 9 - Suppose that a reaction has H=33kJ and S=58J/K. At...Ch. 9 - Suppose that a reaction has H=+41kJ and S=27J/K....Ch. 9 - Which of the reactions (a)-(d) in Problem 9.132...Ch. 9 - Vinyl chloride (H2C=CHCI), the starting material...Ch. 9 - Ethyl alcohol has Hfusion=5.02kJ/mol and melts at...Ch. 9 - Chloroform has Hvaporization=29.2kJ/mol and boils...Ch. 9 - The boiling point of a substance is defined as the...Ch. 9 - What is the melting point of benzene in kelvin if...Ch. 9 - Prob. 9.142SPCh. 9 - Methanol (CH3OH) is made industrially in two steps...Ch. 9 - Ethyl chloride ( C2H5CI ), a substance used as a...Ch. 9 - Prob. 9.145MPCh. 9 - For a process to be spontaneous, the total entropy...Ch. 9 - Prob. 9.147MPCh. 9 - Prob. 9.148MPCh. 9 - Prob. 9.149MPCh. 9 - Prob. 9.150MPCh. 9 - Phosgene, COCI2(g), is a toxic gas used as an...Ch. 9 - Prob. 9.152MPCh. 9 - Write a balanced equation for the reaction of...Ch. 9 - Hydrazine, a component of rocket fuel, undergoes...Ch. 9 - Prob. 9.155MP
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