CHEMISTRY >CUSTOM<
14th Edition
ISBN: 9781259137815
Author: Julia Burdge
Publisher: McGraw-Hill Education
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Chapter 19, Problem 52QP
A constant
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Are there any alternative methods better than the MOHR titration to quantitatively determine salt in a sample?
hybridization of nitrogen of complex molecules
Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NO2 (g) = N2O4(g)
AGº = -5.4 kJ
Now suppose a reaction vessel is filled with 4.53 atm of dinitrogen tetroxide (N2O4) at 279. °C. Answer the following questions about this system:
Under these conditions, will the pressure of N2O4 tend to rise or fall?
Is it possible to reverse this tendency by adding NO2?
In other words, if you said the pressure of N2O4 will tend to rise, can that
be changed to a tendency to fall by adding NO2? Similarly, if you said the
pressure of N2O4 will tend to fall, can that be changed to a tendency to
'2'
rise by adding NO2?
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of NO 2 needed to reverse it.
Round your answer to 2 significant digits.
00
rise
☐ x10
fall
yes
no
☐ atm
G
Ar
1
Chapter 19 Solutions
CHEMISTRY >CUSTOM<
Ch. 19.1 - Prob. 1PPACh. 19.1 - Prob. 1PPBCh. 19.1 - Prob. 1PPCCh. 19.1 - Which of the following equations does not...Ch. 19.1 - MuO 4 and C 2 O react in basic solution to form...Ch. 19.2 - Practice ProblemATTEMPT Determine the overall cell...Ch. 19.2 - Practice Problem BUILD
A galvanic cell with V can...Ch. 19.2 - Prob. 1PPCCh. 19.3 - Prob. 1PPACh. 19.3 - Practice ProblemBUILD Would it be safer to store a...
Ch. 19.3 - Practice ProblemCONCEPTUALIZE A piece of nickel...Ch. 19.3 - Calculate E cell o at 25°C for a galvanic cell...Ch. 19.3 - 19.3.2 Calculate at for a galvanic cell made of a...Ch. 19.3 - 19.3.3 What redox reaction, if any. will occur at ...Ch. 19.3 - What redox reaction, if any. will occur at 25°C...Ch. 19.4 - Practice Problem ATTEMPT
Calculate for the...Ch. 19.4 - Practice ProblemBUILD The hydrazinium ion, N 2 H 5...Ch. 19.4 - Practice Problem CONCEPTUALIZE
Which of the...Ch. 19.4 - Calculate K at 25°C for the following reaction: Fe...Ch. 19.4 - 19.4.2 Calculate for the following reaction:
Ch. 19.5 - Practice ProblemATTEMPT Calculate the equilibrium...Ch. 19.5 - Practice Problem BUILD
Like equilibrium constants....Ch. 19.5 - Practice ProblemCONCEPTUALIZE Which of the...Ch. 19.5 - Calculate E at 25°C for a galvanic cell based on...Ch. 19.5 - 19.5.2 Calculate the cell potential at of a...Ch. 19.5 - 19.5.3 Calculate for a galvanic cell based on the...Ch. 19.5 - 19.5.4 Which of these would cause an increase in...Ch. 19.5 - 19.5.5 Determine the initial value of under the...Ch. 19.5 - Which of the following would cause a decrease in...Ch. 19.6 - Practice ProblemATTEMPT Will the following...Ch. 19.6 - Prob. 1PPBCh. 19.6 - Prob. 1PPCCh. 19.7 - Prob. 1PPACh. 19.7 - Prob. 1PPBCh. 19.7 - Practice Problem CONCEPTUALIZE
When the circuit in...Ch. 19.7 - 19.7.1 In the electrolysis of molten , a current...Ch. 19.7 - 19.7.2 How long will a current of 0.995 A need to...Ch. 19.7 - The diagram shows an electrolytic cell being...Ch. 19.8 - Practice Problem ATTEMPT
A constant current of...Ch. 19.8 - Practice Problem BUILD
A constant current is...Ch. 19.8 - Practice ProblemCONCEPTUALIZE The diagram on the...Ch. 19 - How much copper metal can be produced by...Ch. 19 - What mass of cadmium will be produced by...Ch. 19 - Of the following aqueous solutions, identify the...Ch. 19 - 19.4
When a current of 5.22 A is applied over 3.50...Ch. 19 - Balance the following redox equations by the...Ch. 19 - Balance the following redox equations by the...Ch. 19 - Define the following terms: anode, cathode, cell...Ch. 19 - 19.4 Describe the basic features of a galvanic...Ch. 19 - 19.5 What is the function of a salt bridge? What...Ch. 19 - What is a cell diagram? Write the cell diagram for...Ch. 19 - What is the difference between the half-reactions...Ch. 19 - Discuss the spontaneity of an electrochemical...Ch. 19 - After operating a Daniell cell (see Figure 19.1)...Ch. 19 - 19.10 Calculate the standard emf of a cell that...Ch. 19 - Calculate the standard emf of a cell that uses...Ch. 19 - Predict whether Fe 3+ can oxidize I - to I 2 under...Ch. 19 - 19.13 Which of the following reagents can oxidize ...Ch. 19 - 19.14 Consider the following...Ch. 19 - Predict whether the following reactions would...Ch. 19 - 19.16 Which species in each pair is a better...Ch. 19 - Which species in each pair is a better reducing...Ch. 19 - 19.18 Use the information in Table 2.1, and...Ch. 19 - Write the equations relating Δ G ° and K to the...Ch. 19 - Prob. 20QPCh. 19 - What is the equilibrium constant for the following...Ch. 19 - 19.22 The equilibrium constant for the...Ch. 19 - Use the standard reduction potentials to find the...Ch. 19 - Calculate △ G ° and K c for the following...Ch. 19 - Under standard-state conditions, what spontaneous...Ch. 19 - Given that E ° = 0.52 V for the reduction Cu + ( a...Ch. 19 - Write the Nernst equation, and explain all the...Ch. 19 - Write the Nernst equation for the following...Ch. 19 - What is the potential of a cell made up of Zn/Zn...Ch. 19 - 19.30 Calculate for the following cell...Ch. 19 - 19.31 Calculate the standard potential of the cell...Ch. 19 - 19.32 What is the emf of a cell consisting of a ...Ch. 19 - 19.33 Referring to the arrangement in Figure 19.1,...Ch. 19 - Calculate the emf of the following concentration...Ch. 19 - 19.35 What is a battery? Describe several types of...Ch. 19 - 19.36 Explain the differences between a primary...Ch. 19 - Discuss the advantages and disadvantages of fuel...Ch. 19 - 19.38 The hydrogen-oxygen fuel cell is described...Ch. 19 - Calculate the standard emf of the propane fuel...Ch. 19 - 19.40 What is the difference between a galvanic...Ch. 19 - 19.41 What is Faraday’s contribution to...Ch. 19 - Prob. 42QPCh. 19 - 19.43 The half-reaction at an electrode...Ch. 19 - Consider the electrolysis of molten barium...Ch. 19 - Prob. 45QPCh. 19 - 19.46 If the cost of electricity to produce...Ch. 19 - 19.47 One of the half-reactions for the...Ch. 19 - 19.48 How many faradays of electricity are...Ch. 19 - Calculate the amounts of Cu and Br 2 produced in...Ch. 19 - 19.50 In the electrolysis of an aqueous solution....Ch. 19 - 19.51 A steady current was passed through molten ...Ch. 19 - 19.52 A constant electric current flows for 3.75 h...Ch. 19 - What is the hourly production rate of chlorine gas...Ch. 19 - Chromium plating is applied by electrolysis to...Ch. 19 - 19.55 The passage of a current of 0.750 A for 25.0...Ch. 19 - A quantity of 0.300 g of copper was deposited from...Ch. 19 - 19.57 In a certain electrolysis experiment. 1.44 g...Ch. 19 - One of the half-reactions for the electrolysis of...Ch. 19 - Prob. 59QPCh. 19 - 'Galvanized iron舡 is steel sheet that has been...Ch. 19 - 19.61 Tarnished silver contains . The tarnish can...Ch. 19 - Prob. 62QPCh. 19 - For each of the following redox reactions, (i)...Ch. 19 - The oxidation of 25.0 mL of a solution containing...Ch. 19 - Prob. 65APCh. 19 - Prob. 66APCh. 19 - 19.67 The concentration of a hydrogen peroxide...Ch. 19 - Equations 18.10 and 19.3 to calculate the emf...Ch. 19 - Based on the following standard reduction...Ch. 19 - Complete the following table. State whether the...Ch. 19 - 19.71 From the following information, calculate...Ch. 19 - Consider a galvanic cell composed of the SHE and a...Ch. 19 - A galvanic cell consists of a silver electrode in...Ch. 19 - 19.74 Calculate the equilibrium constant for the...Ch. 19 - 19.75 Calculate the emf of the following...Ch. 19 - 19.76 The cathode reaction in the Leclanché cell...Ch. 19 - Prob. 77APCh. 19 - Prob. 78APCh. 19 - 19.79 A piece of magnesium metal weighing 1.56 g...Ch. 19 - Prob. 80APCh. 19 - Prob. 81APCh. 19 - In a certain electrolysis experiment involving Al...Ch. 19 - 19.83 Consider the oxidation of ammonia:
(a)...Ch. 19 - When an aqueous solution containing gold(III) salt...Ch. 19 - Prob. 85APCh. 19 - Prob. 86APCh. 19 - 19.87 Given that:
calculate and K for the...Ch. 19 - Fluorine ( F 2 ) is obtained by the electrolysis...Ch. 19 - A 300-mL solution of NaCl was electrolyzed for...Ch. 19 - A piece of magnesium ribbon and a copper wire are...Ch. 19 - An aqueous solution of a platinum salt is...Ch. 19 - Consider a galvanic cell consisting of a magnesium...Ch. 19 - Use the data in Table 19.1 to show that the...Ch. 19 - Consider the Daniell cell in Figure 19.1. When...Ch. 19 - 19.95 Explain why most useful galvanic cells give...Ch. 19 - Prob. 96APCh. 19 - 19.97 Zinc is an amphoteric metal; that is, it...Ch. 19 - Use the data in Table 19.1 to determine whether or...Ch. 19 - The magnitudes (but not the signs) of the standard...Ch. 19 - A galvanic cell is constructed as fellows. One...Ch. 19 - Given the standard reduction potential for A u 3+...Ch. 19 - Prob. 102APCh. 19 - Prob. 103APCh. 19 - A galvanic cell using Mg/Mg 2+ and Cu/Cu 2+...Ch. 19 - Prob. 105APCh. 19 - Prob. 106APCh. 19 - Prob. 107APCh. 19 - Prob. 108APCh. 19 - Prob. 109APCh. 19 - 19.110 Explain why chlorine gas can be prepared by...Ch. 19 - Prob. 111APCh. 19 - Prob. 112APCh. 19 - Prob. 113APCh. 19 - 19.114 To remove the tarnish on a silver spoon, a...Ch. 19 - 19.115 A construction company is installing an...Ch. 19 - Prob. 116APCh. 19 - Lead storage batteries are rated by ampere-hours,...Ch. 19 - Prob. 118APCh. 19 - Prob. 119APCh. 19 - Prob. 120APCh. 19 - Prob. 121APCh. 19 - Prob. 122APCh. 19 - Prob. 123APCh. 19 - Prob. 124APCh. 19 - Prob. 125APCh. 19 - 19.126 The zinc-air battery shows much promise for...Ch. 19 - 19.127 A current of 6,00 A passes through an...Ch. 19 - 19.128 solution was electrolyzed. As a result,...Ch. 19 - Prob. 129APCh. 19 - A galvanic cell is constructed by immersing a...Ch. 19 - A galvanic cell is constructed by immersing a...Ch. 19 - A galvanic cell is constructed by immersing a...
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- Why do we analyse salt?arrow_forwardCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. H H CH3OH, H+ H Select to Add Arrows H° 0:0 'H + Q HH ■ Select to Add Arrows CH3OH, H* H. H CH3OH, H+ HH ■ Select to Add Arrows i Please select a drawing or reagent from the question areaarrow_forwardWhat are examples of analytical methods that can be used to analyse salt in tomato sauce?arrow_forward
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