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Chapter 15, Problem 64E
Interpretation Introduction

To determine: The hydronium ion concentration and pH of the formic acid solution.

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Identifying the major species in weak acid or weak base equilibria The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that HF is a weak acid. acids: 0.2 mol of KOH is added to 1.0 L of a 0.5 M HF solution. bases: Х other: ☐ acids: 0.10 mol of HI is added to 1.0 L of a solution that is 1.4M in both HF and NaF. bases: other: ☐ 0,0,... ด ? 18 Ar
Identifying the major species in weak acid or weak base equilibria The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that NH3 is a weak base. acids: ☐ 1.8 mol of HCl is added to 1.0 L of a 1.0M NH3 bases: ☐ solution. other: ☐ 0.18 mol of HNO3 is added to 1.0 L of a solution that is 1.4M in both NH3 and NH₁Br. acids: bases: ☐ other: ☐ 0,0,... ? 000 18 Ar B 1
Using reaction free energy to predict equilibrium composition Consider the following equilibrium: 2NH3 (g) = N2 (g) +3H₂ —N2 (g) AGº = 34. kJ Now suppose a reaction vessel is filled with 4.19 atm of ammonia (NH3) and 9.94 atm of nitrogen (N2) at 378. °C. Answer the following questions about this system: rise Under these conditions, will the pressure of NH 3 tend to rise or fall? ☐ x10 fall Х Is it possible to reverse this tendency by adding H₂? In other words, if you said the pressure of NH 3 will tend to rise, can that be changed to a tendency to fall by adding H₂? Similarly, if you said the pressure of NH3 will tend to fall, can that be changed to a tendency to rise by adding H₂? If you said the tendency can be reversed in the second question, calculate the minimum pressure of H₂ needed to reverse it. Round your answer to 2 significant digits. yes no atm 00. 18 Ar 무ㅎ ?

Chapter 15 Solutions

Masteringchemistry With Pearson Etext -- Valuepack Access Card -- For Principles Of Chemistry: A Molecular Approach

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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General Chemistry | Acids & Bases; Author: Ninja Nerd;https://www.youtube.com/watch?v=AOr_5tbgfQ0;License: Standard YouTube License, CC-BY