Chemistry, Books a la Carte Edition and Modified Mastering Chemistry with Pearson eText & ValuePack Access Card (7th Edition)
7th Edition
ISBN: 9780134172514
Author: John E. McMurry
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 9.146CP
Citric acid has three dissociable hydrogens. When 5.00 mL of 0.64 M citric acid and 45.00 mL of 0.77 M NaOH are mixed at an initial temperature of 26.0 °C, the temperature rises to 27.9 °C as the citric acid is neutralized. The combined mixture has a mass of 51.6 g and a specific heat of 4.0 J/(g•°C). Assuming that no heat is transferred to the surroundings, calculate the enthalpy change for the reaction of l.00 mol of citric acid in kJ. Is the reaction exothermic or endothermic?
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Chapter 9 Solutions
Chemistry, Books a la Carte Edition and Modified Mastering Chemistry with Pearson eText & ValuePack Access Card (7th Edition)
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 - PRACTICE 9.5 Use the following t her mo chemical...Ch. 9 - APPLY 9.6 Approximately, 1.8106 kJ of energy is...Ch. 9 - PRACTICE 9.7 Indicate the direction of heat...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 - Prob. 9.13PCh. 9 - Prob. 9.14ACh. 9 - Prob. 9.15PCh. 9 - Prob. 9.16ACh. 9 - Prob. 9.17PCh. 9 - APPLY 9.18 Benzene (C6H6) has two resonance...Ch. 9 - Prob. 9.19PCh. 9 - Prob. 9.20ACh. 9 - Prob. 9.21PCh. 9 - Prob. 9.22ACh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24ACh. 9 - Prob. 9.25PCh. 9 - Prob. 9.26PCh. 9 - Prob. 9.27PCh. 9 - Prob. 9.28PCh. 9 - Prob. 9.29PCh. 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. 9.34CPCh. 9 - Prob. 9.35CPCh. 9 - Prob. 9.36CPCh. 9 - Prob. 9.37CPCh. 9 - Prob. 9.38CPCh. 9 - Prob. 9.39CPCh. 9 - What is the difference between heat and...Ch. 9 - What is internal energy?Ch. 9 - Prob. 9.42SPCh. 9 - Prob. 9.43SPCh. 9 - Which of the following are state functions, and...Ch. 9 - Prob. 9.45SPCh. 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. 9.48SPCh. 9 - Prob. 9.49SPCh. 9 - 9.50 A reaction inside a cylindrical container...Ch. 9 - At a constant pressure of 0.905 atm, a chemical...Ch. 9 - Prob. 9.52SPCh. 9 - Prob. 9.53SPCh. 9 - Prob. 9.54SPCh. 9 - Prob. 9.55SPCh. 9 - 9.56 The explosion of 2.00 mol of solid...Ch. 9 - Prob. 9.57SPCh. 9 - Prob. 9.58SPCh. 9 - Assume that a particular reaction evolves 244 kJ...Ch. 9 - Prob. 9.60SPCh. 9 - A reaction takes place at a constant pressure of...Ch. 9 - Prob. 9.62SPCh. 9 - Indicate the direction of heat transfer between...Ch. 9 - Prob. 9.64SPCh. 9 - Prob. 9.65SPCh. 9 - Aluminum metal reacts with chlorine with a...Ch. 9 - Prob. 9.67SPCh. 9 - 9,68 How much heat in kilojoules is evolved or...Ch. 9 - 9.69 Nitromethane (CH3NO2), sometimes used as 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 - What is the difference between heat capacity and...Ch. 9 - Does a measurement carried out in a bomb...Ch. 9 - Sodium metal is sometimes used as a cooling agent...Ch. 9 - Titanium metal is used as a structural material in...Ch. 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 - 9.79 Instant hot packs contain a solid and a pouch...Ch. 9 - Prob. 9.80SPCh. 9 - Prob. 9.81SPCh. 9 - 9.82 When 0.187 g of benzene, C6H6 is burned in a...Ch. 9 - Prob. 9.83SPCh. 9 - 9.84 How is the standard state of an element...Ch. 9 - Prob. 9.85SPCh. 9 - Prob. 9.86SPCh. 9 - Prob. 9.87SPCh. 9 - Prob. 9.88SPCh. 9 - Prob. 9.89SPCh. 9 - Prob. 9.90SPCh. 9 - Prob. 9.91SPCh. 9 - Write balanced equations for the formation of the...Ch. 9 - Prob. 9.93SPCh. 9 - Prob. 9.94SPCh. 9 - Prob. 9.95SPCh. 9 - Prob. 9.96SPCh. 9 - Prob. 9.97SPCh. 9 - Prob. 9.98SPCh. 9 - Prob. 9.99SPCh. 9 - Prob. 9.100SPCh. 9 - Prob. 9.101SPCh. 9 - Prob. 9.102SPCh. 9 - Prob. 9.103SPCh. 9 - Prob. 9.104SPCh. 9 - Prob. 9.105SPCh. 9 - Prob. 9.106SPCh. 9 - Prob. 9.107SPCh. 9 - Use the average bond dissociation energies in...Ch. 9 - 9.109 Use the bond dissociation energies in Table...Ch. 9 - Prob. 9.110SPCh. 9 - Calculate an approximate heat of combustion for...Ch. 9 - Prob. 9.112SPCh. 9 - Prob. 9.113SPCh. 9 - Prob. 9.114SPCh. 9 - Prob. 9.115SPCh. 9 - Prob. 9.116SPCh. 9 - Prob. 9.117SPCh. 9 - Prob. 9.118SPCh. 9 - Prob. 9.119SPCh. 9 - One of the steps in the cracking of petroleum into...Ch. 9 - The commercial production of 1,2-dichloro ethane,...Ch. 9 - Prob. 9.122SPCh. 9 - Prob. 9.123SPCh. 9 - Suppose that a reaction has H = -33 kJ and S = -58...Ch. 9 - Suppose that a reaction has H = +41 kJ and S =...Ch. 9 - Prob. 9.126SPCh. 9 - Vinyl chloride (H2C=CHCl), the starting material...Ch. 9 - Ethyl alcohol has Hfusion = 5.02 kJ/mol and melts...Ch. 9 - Chloroform has Hvaporization = 29.2 kJ/mol and...Ch. 9 - When a sample of a hydrocarbon fuel is ignited and...Ch. 9 - Used in welding metals, the reaction of acetylene...Ch. 9 - Ethyl chloride (C2H5Cl), a substance used as a...Ch. 9 - When 1.50 g of magnesium metal is allowed to react...Ch. 9 - Prob. 9.134CPCh. 9 - Find H in kilojoules for the reaction of nitric...Ch. 9 - The boiling point of a substance is defined as the...Ch. 9 - Prob. 9.137CPCh. 9 - Prob. 9.138CPCh. 9 - Prob. 9.139CPCh. 9 - Isooctane, C8H18, is the component of gasoline...Ch. 9 - We said in Section 9.1 that the potential energy...Ch. 9 - For a process to be spontaneous, the total entropy...Ch. 9 - Set up a Hess's law cycle, and use the following...Ch. 9 - A 110.0 g piece of molybdenum metal is heated to...Ch. 9 - Given 400.0 g of hot tea at 80.0 °C, what mass of...Ch. 9 - Citric acid has three dissociable hydrogens. When...Ch. 9 - Assume that 100.0 mL of 0.200 M CsOH and 50.0 mL...Ch. 9 - Imagine that you dissolve 10.0 g of a mixture of...Ch. 9 - Consider the reaction: 4CO(g)+2NO2(g)4CO2(g)+N2(g)...Ch. 9 - The reaction S8(g)4S2(g) has H = +237 kJ (a) The...Ch. 9 - Prob. 9.151MPCh. 9 - Prob. 9.152MPCh. 9 - (a) Write a balanced equation for the reaction of...Ch. 9 - Prob. 9.154MPCh. 9 - Prob. 9.155MP
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