Strong base is dissolved in 695 ml. of 0.600 M weak acid (K, 3.67 x 10) to make a buffer with a pH of 4.15. Assume that %3! the volume remains constant when the base is added. HA(aq) + OH (aq) H,O(0) + A (aq) Calculate the pK, value of the acid, and determine the number of moles of acid initially present. initial amount: mol HA pK, = When the reaction is complete, what is the concentration ratio of conjugate base to acid? (A) (HAJ How many moles of strong base were initially added? amount added: mol OH

Strong base is dissolved in 695 ml. of 0.600 M weak acid (K, 3.67 x 10) to make a buffer with a pH of 4.15. Assume that %3! the volume remains constant when the base is added. HA(aq) + OH (aq) H,O(0) + A (aq) Calculate the pK, value of the acid, and determine the number of moles of acid initially present. initial amount: mol HA pK, = When the reaction is complete, what is the concentration ratio of conjugate base to acid? (A) (HAJ How many moles of strong base were initially added? amount added: mol OH

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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