In each of the following questions, assume that there is no volume change when HCl is added to water in part (a) or the phosphate buffer in part (c). (a) Calculate the pH when 0.049 moles of HCl are added to 1.000 liter of water. (b) What is the difference between the pH of pure water (pH 7.00) and the pH of the solution after HCl was added? (c) Calculate the pH when 0.049 moles of HCl are added to 1.000 liters of a buffer containing 0.277 M KH2PO4 and 0.208 M K2HPO4 . (d) The pH before the HCl was added is equal to 7.083. What is the difference between the pH before adding the HCl and after adding the HCl?
In each of the following questions, assume that there is no volume change when HCl is added to water in part (a) or the phosphate buffer in part (c). (a) Calculate the pH when 0.049 moles of HCl are added to 1.000 liter of water. (b) What is the difference between the pH of pure water (pH 7.00) and the pH of the solution after HCl was added? (c) Calculate the pH when 0.049 moles of HCl are added to 1.000 liters of a buffer containing 0.277 M KH2PO4 and 0.208 M K2HPO4 . (d) The pH before the HCl was added is equal to 7.083. What is the difference between the pH before adding the HCl and after adding the HCl?
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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In each of the following questions, assume that there is no volume change when HCl is added to water in part (a) or the phosphate buffer in part (c).
(a) Calculate the pH when 0.049 moles of HCl are added to 1.000 liter of water.
(b) What is the difference between the pH of pure water (pH 7.00) and the pH of the solution after HCl was added?
(c) Calculate the pH when 0.049 moles of HCl are added to 1.000 liters of a buffer containing 0.277 M KH2PO4 and 0.208 M K2HPO4 .
(d) The pH before the HCl was added is equal to 7.083. What is the difference between the pH before adding the HCl and after adding the HCl?
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