Consider a buffer solution containing HCN and NaCNwhere the concentration of HCN is double theconcentration of NaCN. Which statement about thebuffer solution is true?(A) The pH of this solution is equal to the pK, value ofHCN.(B) The pKa value of HCN will decrease if a strong acidis added.(C) The cyanide ion concentration will increase if astrong base is added.(D) The buffer capacity of this solution will improve if astrong acid is added.

As concentration of HCN is double the concentration of NaCN. Now, if we add strong base in the buffer, it reacts with HCN HCN + OH- ----> CN- + H2O So, concentration of Cyanide ion increases. (c) is correct option

Answered: The pH of this solution is equ HCN. The…

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The pH of this solution is equ HCN. The pK, value of HCN will d is added. The cyanide ion concentratio strong base is added. The buffer capacity of this sc strong g acid is added

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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