Chemistry: A Molecular Approach
3rd Edition
ISBN: 9780321809247
Author: Nivaldo J. Tro
Publisher: Prentice Hall
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Chapter 15, Problem 136E
Interpretation Introduction
To calculate: The percentage of the base.
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The compound HA is an acid that is soluble in water. Which of the "beakers" below shows HA behaving as a weak acid in water?
Piperazine, C4H10N2, is a diprotic weak base (pKb1 = 4.22 and pKb2 = 8.67). A sample of piperazine is dissolved in 100.0 mL of water and titrated with 0.500 M HCl. It takes 48.00 mL of HCl to reach the second equivalence point.
Calculate the pH after the following amounts of HCl have been added: 0 mL, 12.00mL, 24.00mL,36.00mL, 48.00mL, and 60.00mL
CH3CH2CO2H , Ką = 1.3 x 105
CH3CH2CO2 , Kp = 7.7 x 10-10
F, Kp = 1.4 x 10-11
HF , Ką = 7.2 x 10-4
For the reaction between propanoic acid (CH3CH2CO2H) and a solution containing fluoride ions (F"):
(a) The name of the conjugate base produced is
(b) The name of the conjugate acid produced is
(c) The reaction is
favoured (write 'reactant' or 'product'), because the reactants are the
(write 'weaker' or 'stronger') set of
acid and base.
Chapter 15 Solutions
Chemistry: A Molecular Approach
Ch. 15 - Prob. 1SAQCh. 15 - Q2. Which pair is a Brønsted–Lowry conjugate...Ch. 15 - Prob. 3SAQCh. 15 - Prob. 4SAQCh. 15 - Q5. An HNO3(aq) solution has a pH of 1.75. What is...Ch. 15 - Q6. Find the pH of a 0.350 M aqueous benzoic acid...Ch. 15 - Q7. Find the pH of a 0.155 M HClO2(aq) solution....Ch. 15 - Prob. 8SAQCh. 15 - Prob. 9SAQCh. 15 - Prob. 10SAQ
Ch. 15 - Prob. 11SAQCh. 15 - Prob. 12SAQCh. 15 - Prob. 13SAQCh. 15 - Prob. 14SAQCh. 15 - Q15. Which acid has the largest Ka: HClO2(aq),...Ch. 15 - 1. What causes heartburn? What are some possible...Ch. 15 - 2. What are the general physical and chemical...Ch. 15 - Prob. 3ECh. 15 - Prob. 4ECh. 15 - Prob. 5ECh. 15 - Prob. 6ECh. 15 - Prob. 7ECh. 15 - Prob. 8ECh. 15 - Prob. 9ECh. 15 - Prob. 10ECh. 15 - 11. What are diprotic and triprotic acids? List an...Ch. 15 - 12. Define the acid ionization constant and...Ch. 15 - 13. Write an equation for the autoionization of...Ch. 15 - 14. What happens to the [OH–] of a solution when...Ch. 15 - Prob. 15ECh. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Prob. 18ECh. 15 - Prob. 19ECh. 15 - Prob. 20ECh. 15 - Prob. 21ECh. 15 - 22. How can you determine if an anion will act as...Ch. 15 - 23. What is the relationship between the acid...Ch. 15 - 24. What kinds of cations act as weak acids? List...Ch. 15 - 25. When calculating the [H3O+] for a polyprotic...Ch. 15 - Prob. 26ECh. 15 - Prob. 27ECh. 15 - Prob. 28ECh. 15 - Prob. 29ECh. 15 - Prob. 30ECh. 15 -
31. What is acid rain? What causes it, and where...Ch. 15 - Prob. 32ECh. 15 - 33. Identify each substance as an acid or a base...Ch. 15 - 34. Identify each substance as an acid or a base...Ch. 15 - 35. In each reaction, identify the Brønsted–Lowry...Ch. 15 - Prob. 36ECh. 15 - 37. Write the formula for the conjugate base of...Ch. 15 - 38. Write the formula for the conjugate acid of...Ch. 15 - 39. Both H2O and H2PO4– are amphoteric. Write an...Ch. 15 - 40. Both HCO3– and HS– are amphoteric. Write an...Ch. 15 - Prob. 41ECh. 15 - Prob. 42ECh. 15 - Prob. 43ECh. 15 - Prob. 44ECh. 15 - Prob. 45ECh. 15 - Prob. 46ECh. 15 - 47. Calculate [OH–] in each aqueous solution at 25...Ch. 15 - Prob. 48ECh. 15 - Prob. 49ECh. 15 - 50. Calculate [H3O+] and [OH–] for each solution...Ch. 15 - Prob. 51ECh. 15 - Prob. 52ECh. 15 - 53. Like all equilibrium constants, the value of...Ch. 15 - Prob. 54ECh. 15 - 55. Calculate the pH of each acid solution....Ch. 15 - Prob. 56ECh. 15 - Prob. 57ECh. 15 - 58. Determine the pH of each solution.
a. 0.048 M...Ch. 15 - Prob. 59ECh. 15 - Prob. 60ECh. 15 - 61. What is the pH of a solution in which 224 mL...Ch. 15 - Prob. 62ECh. 15 - Prob. 63ECh. 15 - 64. Determine the [H3O+] and pH of a 0.200 M...Ch. 15 - 65. Determine the pH of an HNO2 solution of each...Ch. 15 - 66. Determine the pH of an HF solution of each...Ch. 15 - Prob. 67ECh. 15 - Prob. 68ECh. 15 - Prob. 69ECh. 15 - Prob. 70ECh. 15 - 71. Determine the percent ionization of a 0.125 M...Ch. 15 - Prob. 72ECh. 15 - Prob. 73ECh. 15 - Prob. 74ECh. 15 - Prob. 75ECh. 15 - Prob. 76ECh. 15 - Prob. 77ECh. 15 - Prob. 78ECh. 15 - Prob. 79ECh. 15 - Prob. 80ECh. 15 - Prob. 81ECh. 15 - Prob. 82ECh. 15 - Prob. 83ECh. 15 - Prob. 84ECh. 15 - Prob. 85ECh. 15 - Prob. 86ECh. 15 - Prob. 87ECh. 15 - Prob. 88ECh. 15 - Prob. 89ECh. 15 - Prob. 90ECh. 15 - Prob. 91ECh. 15 - Prob. 92ECh. 15 - Prob. 93ECh. 15 - Prob. 94ECh. 15 - Prob. 95ECh. 15 - Prob. 96ECh. 15 - 97. Determine the [OH–] and pH of a solution that...Ch. 15 - Prob. 98ECh. 15 - Prob. 99ECh. 15 - Prob. 100ECh. 15 - Prob. 101ECh. 15 - 102. Determine if each salt will form a solution...Ch. 15 - Prob. 103ECh. 15 - Prob. 104ECh. 15 - 105. Determine the pH of each solution.
a. 0.10 M...Ch. 15 - 106. Determine the pH of each solution.
a. 0.20 M...Ch. 15 - Prob. 107ECh. 15 - Prob. 108ECh. 15 - Prob. 109ECh. 15 - Prob. 110ECh. 15 - Prob. 111ECh. 15 - 112. Calculate the [H3O+] and pH of each...Ch. 15 - 113. Calculate the concentration of all species in...Ch. 15 - 114. Calculate the concentration of all species in...Ch. 15 - 115. Calculate the [H3O+] and pH of each H2SO4...Ch. 15 - Prob. 116ECh. 15 - Prob. 117ECh. 15 - Prob. 118ECh. 15 - 119. Based on their molecular structure, pick the...Ch. 15 - Prob. 120ECh. 15 - Prob. 121ECh. 15 - 122. Which is a stronger base, PO43– or AsO43–?...Ch. 15 - 123. Classify each species as either a Lewis acid...Ch. 15 - 124. Classify each species as either a Lewis acid...Ch. 15 - Prob. 125ECh. 15 - Prob. 126ECh. 15 - Prob. 127ECh. 15 - Prob. 128ECh. 15 - Prob. 129ECh. 15 - Prob. 130ECh. 15 - Prob. 131ECh. 15 - Prob. 132ECh. 15 - 133. Acid rain over the Great Lakes has a pH of...Ch. 15 - 134. White wines tend to be more acidic than red...Ch. 15 - 135. Common aspirin is acetylsalicylic acid, which...Ch. 15 - Prob. 136ECh. 15 - Prob. 137ECh. 15 - Prob. 138ECh. 15 - Prob. 139ECh. 15 - 140. Determine the pH of each two-component...Ch. 15 - Prob. 141ECh. 15 - Prob. 142ECh. 15 - 143. The pH of a 1.00 M solution of urea, a weak...Ch. 15 - 144. A solution is prepared by dissolving 0.10 mol...Ch. 15 - 145. Lactic acid is a weak acid found in milk. Its...Ch. 15 - Prob. 146ECh. 15 - Prob. 147ECh. 15 - Prob. 148ECh. 15 - Prob. 149ECh. 15 - 150. To what volume should you dilute 1 L of a...Ch. 15 - Prob. 151ECh. 15 - Prob. 152ECh. 15 -
153. Calculate the pH of a solution prepared from...Ch. 15 - 154. To 1.0 L of a 0.30 M solution of HClO2 is...Ch. 15 - 155. A mixture of Na2CO3 and NaHCO3 has a mass of...Ch. 15 - 156. A mixture of NaCN and NaHSO4 consists of a...Ch. 15 - 157. Without doing any calculations, determine...Ch. 15 - 158. Without doing any calculations, determine...Ch. 15 - Prob. 159E
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- Consider a weak organic base (nonelectrolyte) with molar mass 281 g/mol. An aqueous solution of the base has a pH of 8.73 and an osmotic pressure of SS mm Hg at 25C. What is Kb for the weak base?arrow_forwardConsider the following six beakers. All have 100 mL of aqueous 0.1 M solutions of the following compounds: beaker A has HI beaker B has HNO2 beaker C has NaOH beaker D has Ba(OH)2 beaker E has NH4Cl beaker F has C2H5NH2 Answer the questions below, using LT (for is less than), GT (for is greater than), EQ (for is equal to), or MI (for more Information required). (a) The pH in beaker A the pH in beaker B. (b) The pH in beaker C the pH in beaker D. (c) The % ionization in beaker A the % ionization in beaker C. (d) The pH in beaker B the pH in beaker E. (e) The pH in beaker E the pH in beaker F. (f) The pH in beaker C the pH in beaker F.arrow_forwardFormic acid, HCOOH, is found in ants. Write a balanced chemical equation to represent why an aqueous solution of formic acid is acidic.arrow_forward
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