INTRODUCTORY CHEM.-MOD.MASTERINGCHEM.
6th Edition
ISBN: 9780134555591
Author: Tro
Publisher: PEARSON
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Chapter 14, Problem 87E
Interpretation Introduction
Interpretation: The reaction that shows the action of neutralization by buffer in problem-85 upon addition of
Concept Introduction: The weak acid is used to neutralize an added base in a buffer solution. Similarly, the conjugate base is used to neutralize an added acid in a buffer solution.
Buffer solution is the solution which resists the change in
Buffer solution contain weak acid and its conjugate base.
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INTRODUCTORY CHEM.-MOD.MASTERINGCHEM.
Ch. 14 - Which substance is most likely to have a bitter...Ch. 14 - Identity the Brnsted-Lowry base in the reaction....Ch. 14 - What is the conjugate base of the acid HClO4 ? a....Ch. 14 - Prob. 4SAQCh. 14 - Q5. What are the products of the reaction between...Ch. 14 - A 25.00-mL sample of an HNO3 solution is titrated...Ch. 14 - In which solution is [H3O+] less than 0.100 M? a....Ch. 14 - Prob. 8SAQCh. 14 - Prob. 9SAQCh. 14 - What is the pH of a solution with [H3O+]=2.8105M ?...
Ch. 14 - What is [OH] in a solution with a pH of 9.55 ? a....Ch. 14 - A buffer contains HCHO2(aq) and KCHO2(aq). Which...Ch. 14 - 1. What makes tart gummy candies, such as Sour...Ch. 14 - What are the properties of acids? List some foods...Ch. 14 - 3. What is the main component of stomach acid? Why...Ch. 14 - Prob. 4ECh. 14 - What are the properties of bases? Provide some...Ch. 14 - Prob. 6ECh. 14 - Restate the Arrhenius definition of an acid and...Ch. 14 - Prob. 8ECh. 14 - 9. Restate the Brønsted-Lowry definitions of acids...Ch. 14 - Prob. 10ECh. 14 - What is an acidbase neutralization reaction?...Ch. 14 - Prob. 12ECh. 14 - Prob. 13ECh. 14 - 14. Name a metal that a base can dissolve and...Ch. 14 - What is titration? What is the equivalence point?Ch. 14 - Prob. 16ECh. 14 - What is the difference between a strong acid and a...Ch. 14 - Prob. 18ECh. 14 - Prob. 19ECh. 14 - Prob. 20ECh. 14 - Does pure water contain any H3O+ ions? Explain...Ch. 14 - Prob. 22ECh. 14 - 23. Give a possible value of and in a solution...Ch. 14 - 24. How is pH defined? A change of 1.0 pH unit...Ch. 14 - 25. How is pOH defined? A change of 2.0 pOH units...Ch. 14 - Prob. 26ECh. 14 - What is a buffer?Ch. 14 - Prob. 28ECh. 14 - Identify each substance as an acid or a base and...Ch. 14 - 30. Identify each substance as an acid or a base...Ch. 14 - 31. For each reaction, identify the Brønsted-Lowry...Ch. 14 - For each reaction, identify the Brnsted-Lowry...Ch. 14 - Determine whether each pair is a conjugate...Ch. 14 - Determine whether each pair is a conjugate...Ch. 14 - Write the formula for the conjugate base of each...Ch. 14 - Prob. 36ECh. 14 - 37. Write the formula for the conjugate acid of...Ch. 14 - Prob. 38ECh. 14 - Write a neutralization reaction for each acid and...Ch. 14 - Write a neutralization reaction for each acid and...Ch. 14 - 41. Write a balanced chemical equation showing how...Ch. 14 - Prob. 42ECh. 14 - Prob. 43ECh. 14 - Prob. 44ECh. 14 - Prob. 45ECh. 14 - Prob. 46ECh. 14 - 47. Four solutions of unknown HCl concentration...Ch. 14 - 48. Four solutions of unknown NaOH concentration...Ch. 14 - 49. A 25.00-mL sample of an solution of unknown...Ch. 14 - 50. A 5.00-mL sample of an solution of unknown...Ch. 14 - What volume in milliliters of a 0.121 M sodium...Ch. 14 - 52. What volume in milliliters of a 0.0985 M...Ch. 14 - Prob. 53ECh. 14 - 54. Classify each acid as strong or...Ch. 14 - Prob. 55ECh. 14 - Determine [H3O+] in each acid solution. If the...Ch. 14 - Prob. 57ECh. 14 - Prob. 58ECh. 14 - Prob. 59ECh. 14 - Prob. 60ECh. 14 - 61. Determine if each solution is acidic, basic,...Ch. 14 - Prob. 62ECh. 14 - Calculate [OH] given [H3O+] in each aqueous...Ch. 14 - Calculate [OH] given [H3O+] in each aqueous...Ch. 14 - Calculate [H3O+] given [OH] in each aqueous...Ch. 14 - 66. Calculate given in each aqueous solution and...Ch. 14 - 67. Classify each solution as acidic, basic, or...Ch. 14 - Prob. 68ECh. 14 - 69. Calculate the pH of each...Ch. 14 - Calculate the pH of each solution. a....Ch. 14 - 71. Calculate of each solution.
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Ch. 14 - 72. Calculate of each solution.
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Ch. 14 - Prob. 73ECh. 14 - Prob. 74ECh. 14 - 75. Calculate of each solution.
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Ch. 14 - 76. Calculate of each solution.
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Ch. 14 - Calculate the pH of each solution: a. 0.0155MHBr...Ch. 14 - Prob. 78ECh. 14 - Determine the pOH of each solution and classify it...Ch. 14 - Determine the pOH of each solution and classify it...Ch. 14 - Determine the pOH of each solution. a....Ch. 14 - Prob. 82ECh. 14 - Prob. 83ECh. 14 - Prob. 84ECh. 14 - 85. Determine whether or not each mixture is a...Ch. 14 - Determine whether or not each mixture is a buffer....Ch. 14 - Prob. 87ECh. 14 - 88. Write reactions showing how each of the...Ch. 14 - Prob. 89ECh. 14 - Which substance could you add to each solution to...Ch. 14 - 91. How much 0.100 M HCl is required to completely...Ch. 14 - How much 0.200 M KOH is required to completely...Ch. 14 - What is the minimum volume of 5.0 M HCl required...Ch. 14 - What is the minimum volume of 3.0 M HBr required...Ch. 14 - Prob. 95ECh. 14 - Prob. 96ECh. 14 - A 0.125-g sample of a monoprotic acid of unknown...Ch. 14 - Prob. 98ECh. 14 - 99. People take antacids, such as milk of...Ch. 14 - An antacid tablet requires 25.82 mL of 200 M HCl...Ch. 14 - Prob. 101ECh. 14 - Prob. 102ECh. 14 - Complete the table. (The first row is completed...Ch. 14 - Prob. 104ECh. 14 - Prob. 105ECh. 14 - Prob. 106ECh. 14 - 107. For each strong base solution, determine , ...Ch. 14 - Prob. 108ECh. 14 - 109. As described in Section 14.1, jailed spies on...Ch. 14 - Prob. 110ECh. 14 - 111. What is the pH of a solution formed by mixing...Ch. 14 - Prob. 112ECh. 14 - 113. How many (or ) ions are present in one drop...Ch. 14 - Prob. 114ECh. 14 - Prob. 115ECh. 14 - Prob. 116ECh. 14 - Prob. 117ECh. 14 - Prob. 118ECh. 14 - Prob. 119ECh. 14 - Choose an example of a reaction featuring a...Ch. 14 - 121. Divide your group in two. Have each half of...Ch. 14 - Prob. 122QGWCh. 14 - With group members acting as atoms or ions, act...Ch. 14 - Data Interpretation and Analysis
124. The progress...
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- A buffer solution was prepared by adding 4.95 g sodium acetate to 250. mL of 0.150-M acetic acid. What ions and molecules are present in the solution? List them in order of decreasing concentration. Calculate the pH of the buffer solution. Calculate the pH of 100. mL of the buffer solution if you add 80. mg NaOH. (Assume negligible change in volume.) Write a net ionic equation for the reaction that occurs to change the pH.arrow_forwardCalculate the pH of a solution that is 0.40 M H2NNH2 and 0.80 M H2NNH3NO3. In order for this buffer to have pH = pKa, would you add HCl or NaOH? What quantity (moles) of which reagent would you add to 1.0 L of the original buffer so that the resulting solution has pH = pKa?arrow_forwardA student dissolves 0.0100 mole of an unknown weak base in 100.0 mL water and titrates the solution with 0.100 M HNO3. After 40.0 mL of 0.100 M HNO3 was added, the pH of the resulting solution was 8.00. Calculate the Kb value for the weak base.arrow_forward
- Some K2SO3 and KHSO3 are dissolved in 250.0 mL of solution and the resulting pH is 7.25. Which is greater in this buffer solution, the concentration of SO32 or the concentration of HSO32? If [SO32] = 1.0 M in this solution, calculate the concentration of HSO3.arrow_forwardAn aqueous solution contains dissolved C6H5NH3Cl and C6H5NH2. The concentration of C6H5NH2 is 0.50 M and pH is 4.20. a. Calculate the concentration of C6H5NH3+ in this buffer solution. b. Calculate the pH after 4.0 g NaOH(s) is added to 1.0 L of this solution. (Neglect any volume change.)arrow_forwardCalculate the pH after 0.10 mole of NaOH is added to 1.00 L of the solution in Exercise 31, and calculate the pH after 0.20 mole of HCl is added to 1.00 L of the solution in Exercise 31.arrow_forward
- What is the effect on the concentration of acetic acid, hydronium ion, and acetate ion when the following are added to an acidic buffer solution of equal concentrations of acetic acid and sodium acetate: (a) HCl. (b) KCH3CO2. (C) NaCl. (d) KOH. (e) CH3CO2Harrow_forwardIndicate whether each of the following statements is true or false. If the statement is false, restate it to make it true. (a) The formate ion (CHO2-) concentration in 0.10 M HCHO2 is the same as in 0.10 M NaCHO2. (b) A buffer can be destroyed by adding too much strong acid. (c) A buffer can be made up by any combination of weak acid and weak base. (d) Because Ka for HCO3- is4.71011, Kb for HCO3- is2.1104.arrow_forwardEnough water is added to the buffer in Question 29 to make the total volume 10.0 L. Calculate (a) the pH of the buffer. (b) the pH of the buffer after the addition of 0.0500 mol of HCl to 0.600 L of diluted buffer. (c) the pH of the buffer after the addition of 0.0500 mol of NaOH to 0.600 L of diluted buffer. (d) Compare your answers to Question 29(a)-(c) with your answers to (a)-(c) in this problem. (e) Comment on the effect of dilution on the pH of a buffer and on its buffer capacity.arrow_forward
- a Draw a pH titration curve that represents the titration of 50.0 mL of 0.10 M NH3 by the addition of 0.10 M HCl from a buret. Label the axes and put a scale on each axis. Show where the equivalence point and the buffer region are on the titration curve. You should do calculations for the 0%, 30%, 50%, and 100% titration points. b Is the solution neutral, acidic, or basic at the equivalence point? Why?arrow_forwardYou titrate 25.0 mL of 0.10 M NH3 with 0.10 M HCl. (a) What is the pH of the NH3 solution before the titration begins? (b) What is the pH at the equivalence point? (c) What is the pH at the halfway point of the titration? (d) What indicator in Figure 17.11 could be used to detect the equivalence point? (e) Calculate the pH of the solution after adding 5.00, 15.0, 20.0, 22.0, and 30.0 mL of the acid. Combine this information with that in parts (a)(c) and plot the titration curve.arrow_forward
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Acid-Base Titration | Acids, Bases & Alkalis | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=yFqx6_Y6c2M;License: Standard YouTube License, CC-BY