Based on the two graphs , draw conclusions regarding the buffer and water solutions ability to resist changes in pH after the addition of NaOH pH against volume of NaOH added to water1412108pH64102030405060Volume of NaOH added to buffer (mL)2. pH against volume of NaOH added to buffer7654pH32102030405060Volume of NaOH added to buffer (mL)

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Answered: Based on the two graphs , draw…

Based on the two graphs , draw conclusions regarding the buffer and water solutions ability to resist changes in pH after the addition of NaOH

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A 1 liter solution contains 0.427 M hydrofluoric acid and 0.569 M sodium fluoride.Addition of 0.213 moles of potassium hydroxide will:(Assume that the volume does not change upon the addition of potassium hydroxide.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity
A 1 liter solution contains 0.567 M acetic acid and 0.425 M potassium acetate.Addition of 0.213 moles of nitric acid will:(Assume that the volume does not change upon the addition of nitric acid.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity
If the total concentration of a buffer is known (and not the individual concentrations of the weak acid and its conjugate base), can the pH be calculated?
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Part A Review Constants | Periodic Table Learning Goal: To understand how buffers use reserves of conjugate acid and conjugate base to counteract the effects of acid or base addition on pH. A buffer is a mixture of a conjugate acid-base pair. In other words, it is a solution that contains a weak acid and its conjugate base, or a weak base and its conjugate acid. For example, an acetic acid buffer consists of acetic acid, CH3COOH, and its conjugate base, the acetate ion CH3COO. Because ions cannot simply be added to a solution, the conjugate base is added in a salt form (e.g., sodium acetate NaCH, COO). Buffers work because the conjugate acid-base pair work together to neutralize the addition of H+ or OH ions. Thus, for example, if H+ ions are added to the acetate buffer described above, they will be largely removed from solution by the reaction of H+ with the conjugate base: H++ CH3COO→CH3COOH Similarly, any added OH ions will be neutralized by a reaction with the conjugate acid: OH +…
A 1 liter solution contains 0.324 M acetic acid and 0.243 M potassium acetate.Addition of 0.122 moles of hydrobromic acid will:(Assume that the volume does not change upon the addition of hydrobromic acid.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity
An aqueous solution contains 0.26 M ammonium iodide. One liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) (Select all that apply.) 0.25 mol NH3 0.26 mol HNO3 0.12 mol HNO3 0.25 mol Nal 0.06 mol Ca(OH)2
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1) A 1 liter solution contains 0.363 M nitrous acid and 0.484 M sodium nitrite.Addition of 0.399 moles of potassium hydroxide will:(Assume that the volume does not change upon the addition of potassium hydroxide.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity 2) A 1 liter solution contains 0.364 M hydrocyanic acid and 0.485 M sodium cyanide.Addition of 0.182 moles of potassium hydroxide will:(Assume that the volume does not change upon the addition of potassium hydroxide.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity
A 1 liter solution contains 0.485 M ammonium bromide and 0.364 M ammonia.Addition of 0.400 moles of perchloric acid will:(Assume that the volume does not change upon the addition of perchloric acid.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity