Please provide answer of 1,5,6,7,8,9 The problem: you have 250 mL of 0.2 M potassium phosphate buffer, pH 6.60. What is the pH after adding 7 mL of3М КОН?1) The relevant pKa of the acid in this problem is:a) 6.86b) 2.14c) 3.75d) 4.76e) 12.45) The initial concentration of conjugate base is:a) 0 Mb) 0.20 Mc) 0.100 Md) 0.129 Me) 0.071 M6) The initial number of moles of conjugate base is:A) 0.0323 molesB) 0.200 molesC) 0.323 molesD) 0.0178 moleE) 0.100 molesF) 0.077 moles7) The number of moles of KOH added is:a) 0.042 Mb) 0.005 molesc) 0.210 molesd) 0.05 molese) 0.021 moles8) The final number of moles of acid (HA) is:A) 0.073 MB) 0.0113 molesC) 0.2 molesD) 0.039 molesE) 0.127 moles9) The final pH =A) pKa + 0.54B) pKa + 0.28C) pKa + 0.68D) 7.0E) pKa - 0.33

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The problem: you have 250 mL of 0.2 M potassium phosphate buffer, pH 6.60. What is the pH after adding 7 mL of 3 M KOH? 1) The relevant pKa of the acid in this problem is: a) 6.86 b) 2.14 c) 3.75 d) 4.76 e) 12.4 5) The initial concentration of conjugate base is: a) 0 M b) 0.20 M c) 0.100 M d) 0.129 M e) 0.071 M 6) The initial number of moles of conjugate base is:

The problem: you have 250 mL of 0.2 M potassium phosphate buffer, pH 6.60. What is the pH after adding 7 mL of 3 M KOH? 1) The relevant pKa of the acid in this problem is: a) 6.86 b) 2.14 c) 3.75 d) 4.76 e) 12.4 5) The initial concentration of conjugate base is: a) 0 M b) 0.20 M c) 0.100 M d) 0.129 M e) 0.071 M 6) The initial number of moles of conjugate base is:

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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