CHEM: STRUC & PROP (LL) VOL 2 >C PKG<
2nd Edition
ISBN: 9780137390922
Author: Tro
Publisher: PEARSON C
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Chapter 17, Problem 74E
Interpretation Introduction
To determine:
To compare two basic solutions in titration curves and to find out which acid has a larger base dissociation constant.
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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
Why do we analyse salt?
Chapter 17 Solutions
CHEM: STRUC & PROP (LL) VOL 2 >C PKG<
Ch. 17 - What is the pH range of human blood? How is human...Ch. 17 - What is a buffer? How does a buffer work? How does...Ch. 17 - What is the common ion effect?Ch. 17 - What is the HendersonHasselbalch equation, and why...Ch. 17 - What is the pH of a buffer when the concentrations...Ch. 17 - Suppose that a buffer contains equal amounts of a...Ch. 17 - How do you use the Henderson—Hasselbalch equation...Ch. 17 - What factors influence the effectiveness of a...Ch. 17 - What is the effective pH range of a buffer...Ch. 17 - Describe acidbase titration. What is the...
Ch. 17 - The pH at the equivalence point of the titration...Ch. 17 - The volume required to reach the equivalence point...Ch. 17 - In the titration of a strong acid with a strong...Ch. 17 - In the titration of a weak acid with a strong...Ch. 17 - The titration of a diprotic acid with sufficiently...Ch. 17 - In the titration of a polyprotic acid, the volume...Ch. 17 - What is the difference between the endpoint and...Ch. 17 - What is an indicator? How can an indicator signal...Ch. 17 - What is the solubility-product constant? Write a...Ch. 17 - What is molar solubility? How do you obtain the...Ch. 17 - How does a common ion affect the solubility of a...Ch. 17 - How is the solubility of an ionic compound with a...Ch. 17 - For a given solution containing an ionic compound,...Ch. 17 - What is selective precipitation? Under which...Ch. 17 - In which of these solutions does HNO2 ionize less...Ch. 17 - A formic acid solution has a pH of 3.25. Which of...Ch. 17 - Solve an equilibrium problem (using an ICE table)...Ch. 17 - Solve an equilibrium problem (using an ICE table)...Ch. 17 - Calculate the percent ionization of a 0.15 M...Ch. 17 - Calculate the percent ionization of a 0.13 M...Ch. 17 - Solve an equilibrium problem (using an ICE table)...Ch. 17 - Solve an equilibrium problem (using an ICE table)...Ch. 17 - A buffer contains significant amounts of acetic...Ch. 17 - A buffer contains significant amounts of ammonia...Ch. 17 - Use the HendersonHasselbalch equation to calculate...Ch. 17 - Use the Henderson—Hasselbalch equation to...Ch. 17 - Use the Henderson—Hasselbalch equation to...Ch. 17 - Use the Henderson—Hasselbaich equation to...Ch. 17 - Calculate the pH of the solution that results from...Ch. 17 - Calculate the pH of the solution that results from...Ch. 17 - Calculate the ratio of NaF to HF required to...Ch. 17 - Calculate the ratio of CH3NH2 to CH3NH3Cl...Ch. 17 - What mass of sodium benzoate should you add to...Ch. 17 - What mass of ammonium chloride should you add to...Ch. 17 - A 250.0-mL buffer solution is 0.250 M in acetic...Ch. 17 - A 100.0-mL buffer solution is 0.175 M in HCIO and...Ch. 17 - For each solution, calculate the initial and final...Ch. 17 - For each solution, calculate the initial and final...Ch. 17 - A 350.0-mL buffer solution is 0.150 in HF and...Ch. 17 - A 100.0-mL buffer solution is 0.100 M ¡n NH3 and...Ch. 17 - Determine whether the mixing of each pair of...Ch. 17 - Determine whether the mixing of each pair of...Ch. 17 - Blood s buffered by carbonic acid and the...Ch. 17 - The fluids within cells are buffered by H2PO4 and...Ch. 17 - Which buffer system is the best choice to create a...Ch. 17 - Which buffer system is the best choice to create a...Ch. 17 - A 500.0-mL buffer solution is 0.100 M in HNO2 and...Ch. 17 - Prob. 58ECh. 17 - The graphs labeled (a) and (b) are the titration...Ch. 17 - Two 25.0-mL samples, one 0.100 M HCI and the other...Ch. 17 - Two 20.0-mL samples, one 0.200 M KOH and the other...Ch. 17 - Prob. 62ECh. 17 - Consider the curve shown here for the titration of...Ch. 17 - Consider the curve shown here for the titration of...Ch. 17 - Consider the titration of a 35.0-mL sample of...Ch. 17 - A 20.0-mL sample of 0.125 M HNO3 is titrated with...Ch. 17 - Consider the titration of a 25.0-mL sample of...Ch. 17 - Prob. 68ECh. 17 - Prob. 69ECh. 17 - Prob. 70ECh. 17 - Consider the titration of a 25.0-mL sample of...Ch. 17 - Prob. 72ECh. 17 - Prob. 73ECh. 17 - Prob. 74ECh. 17 - Prob. 75ECh. 17 - Prob. 76ECh. 17 - Prob. 77ECh. 17 - Prob. 78ECh. 17 - Methyl red has a pKaof 5.0 and is red in its acid...Ch. 17 - Phenolphthalein has a pKaof 9.7. It is colorless...Ch. 17 - Referring to Table 17.1pick an indicator for use...Ch. 17 - Referring to Table 17.1 pick an indicator for use...Ch. 17 - Write balanced equations and expressions for...Ch. 17 - Prob. 84ECh. 17 - Refer to the Kspvalues in Table 17.2 to calculate...Ch. 17 - Prob. 86ECh. 17 - Use the given molar solubilities in pure water to...Ch. 17 - Prob. 88ECh. 17 - Two compounds with general formulas AX and AX2...Ch. 17 - Consider the compounds with the generic formulas...Ch. 17 - Refer to the Ksp value from Table 17.2 to...Ch. 17 - Prob. 92ECh. 17 - Calculate the molar solubility of barium fluoride...Ch. 17 - Prob. 94ECh. 17 - Calculate the molar solubility of calcium...Ch. 17 - Calculate the solubility (in grams per 1.00102 of...Ch. 17 - Is each compound more soluble in acidic solution...Ch. 17 - Is each compound more soluble in acidic solution...Ch. 17 - A solution containing sodium fluoride is mixed...Ch. 17 - A solution containing potassium bromide is mixed...Ch. 17 - Predict whether a precipitate forms if you mix...Ch. 17 - Prob. 102ECh. 17 - Prob. 103ECh. 17 - Prob. 104ECh. 17 - A solution is 0.010 M in Ba2+ and 0.020 M in Ca2+...Ch. 17 - Prob. 106ECh. 17 - A solution is made 1.1103M in Zn(NO3)2 and 0.150 M...Ch. 17 - A 120.0-mL sample of a solution that is 2.8103M in...Ch. 17 - Use the appropriate values of Kspand Kfto find the...Ch. 17 - Prob. 110ECh. 17 - A 1.500-mL solution contains 2.05 g of sodium...Ch. 17 - A solution ¡s made by combining 10.0 ml of 17.5 M...Ch. 17 - A buffer is created by combining 150.0 mL of 0.25...Ch. 17 - A buffer is created by combining 3.55 g of NH3...Ch. 17 - A 1.0-L buffer solution initially contains 0.25...Ch. 17 - A 250.0-mL buffer solution initially contains...Ch. 17 - In analytical chemistry, bases used for titrations...Ch. 17 - A 0.5224-g sample of an unknown monoprotic acid...Ch. 17 - A 0.25-mol sample of a weak acid with an unknown...Ch. 17 - A 5.55-g sample of a weak acid with Ka=1.3104 is...Ch. 17 - A 0.552-g sample of ascorbic acid (vitamin C) is...Ch. 17 - Sketch the titration curve from Problem 121by...Ch. 17 - One of the main components of hard water is CaCO3....Ch. 17 - Gout—a condition that results in joint swelling...Ch. 17 - Pseudogout, a condition with symptoms similar to...Ch. 17 - Calculate the solubility of silver chloride in a...Ch. 17 - Calculate the solubility of CuX ¡n a solution that...Ch. 17 - Aniline, C6H5NH2, is an important organic base...Ch. 17 - The Kbof hydroxylamine, NH2OH is 1.0108 . A buffer...Ch. 17 - Prob. 130ECh. 17 - Prob. 131ECh. 17 - Prob. 132ECh. 17 - What relative masses of dimethyl amine and...Ch. 17 - You are asked to prepare 2.0 L of a HCN/NaCN...Ch. 17 - Prob. 135ECh. 17 - Prob. 136ECh. 17 - Prob. 137ECh. 17 - Prob. 138ECh. 17 - When excess solid Mg(OH)2 is shaken with 1.00 L of...Ch. 17 - Prob. 140ECh. 17 - Calculate the solubility of Au(OH)3 in (a) water...Ch. 17 - Calculate the concentration of I in a solution...Ch. 17 - Prob. 143ECh. 17 - Prob. 144ECh. 17 - Find the pH of a solution prepared from 1.0 L of a...Ch. 17 - Prob. 146ECh. 17 - Prob. 147ECh. 17 - Prob. 148ECh. 17 - Consider three solutions: 0.10 M solution of a...Ch. 17 - Prob. 150ECh. 17 - Prob. 151ECh. 17 - Prob. 152ECh. 17 - Prob. 153ECh. 17 - Prob. 154ECh. 17 - A certain town gets its water from an underground...Ch. 17 - Prob. 156ECh. 17 - Prob. 157ECh. 17 - A buffer is 0.100 M in NH4CI and 0.100 M in NH3....Ch. 17 - What is the pH of a buffer that is 0.120 M in...Ch. 17 - Prob. 3SAQCh. 17 - Prob. 4SAQCh. 17 - Prob. 5SAQCh. 17 - Prob. 6SAQCh. 17 - Prob. 7SAQCh. 17 - A 10.0-mL sample of 0.200 M hydrocyanic acid (HCN)...Ch. 17 - Prob. 9SAQCh. 17 - Prob. 10SAQCh. 17 - Prob. 11SAQCh. 17 - Prob. 12SAQCh. 17 - Calculate the molar solubility of magnesium...Ch. 17 - Prob. 14SAQCh. 17 - Prob. 15SAQ
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