Addition of 0.297 moles of nitric acid will: (Assume that the volume does not change upon the addition of nitric acid.) | Raise the pH slightly O Lower the pH slightly | Raise the pH by several units ) Lower the pH by several units Not change the pH Exceed the buffer capacity

Addition of 0.297 moles of nitric acid will: (Assume that the volume does not change upon the addition of nitric acid.) | Raise the pH slightly O Lower the pH slightly | Raise the pH by several units ) Lower the pH by several units Not change the pH Exceed the buffer capacity

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
An aqueous solution contains 0.28 M hydrofluoric acid. 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.) 0.14 mol HBr0.28 mol NaI0.29 mol NaF0.14 mol KOH0.29 mol HBr An aqueous solution contains 0.28 M ammonia. 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.) 0.29 mol NH4ClO4 0.14 mol HBr 0.29 mol HBr 0.14 mol Ca(OH)2 0.28 mol Ba(ClO4)2
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A 27.4 mL sample of 0.356 M ammonia, NH3, is titrated with 0.279 M hydrobromic acid. At the titration midpoint, the pH is Use the Tables link in the References for any equilibrium constants that are required.
A1 liter solution contains 0.395 M hypochlorous acid and 0.526 M potassium hypochlorite. Addition of 0.434 moles of calcium hydroxide will: (Assume that the volume does not change upon the addition of calcium hydroxide.) O Raise the pH slightly Lower the pH slightly |Raise the pH by several units | Lower the pH by several units O Not change the pH Exceed the buffer capacity
It was assumed: a) Before any acetic acid was added, essentially all the indicator was in the In- form. b) After the HCl was added, essentially all the indicator was in the HIn form. Justify these assumptions using the measured pH of these solutions and your experimental value for pKHIn to determine: 1) The fraction fo the indicator in the HIn form in solution B before any of solution A was added 2) The fraction of the indicator in the In- form after the HCl was added.
A 1 liter solution contains 0.357 M hydrofluoric acid and 0.268 M potassium fluoride. Addition of 0.295 moles of hydrobromic acid will: (Assume that the volume does not change upon the addition of hydrobromic acid.) Raise the pH slightly O Lower the pH slightly Raise the pH by several units O Lower the pH by several units O Not change the pH O Exceed the buffer capacity
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
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