acid buffer containing 0.050 M CH3COOH and 0.050 M CH3COONA has a pH of 4.74. What will after 0.0020 mol of HCI has been added to 100.0 mL of the buffer? Given: Ka= 1.8 x 10-5 for a. of these choices is correct arch 1:31 PM (? 3/18/2021 12 DAUSO B alt ctri

acid buffer containing 0.050 M CH3COOH and 0.050 M CH3COONA has a pH of 4.74. What will after 0.0020 mol of HCI has been added to 100.0 mL of the buffer? Given: Ka= 1.8 x 10-5 for a. of these choices is correct arch 1:31 PM (? 3/18/2021 12 DAUSO B alt ctri

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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Question

An acetic acid buffer containing 0.050 M CH3COOH and 0.050 M CH3COONA has a pH of 4.74. What will
the pH be after 0.0020 mol of HCI has been added to 100.0 mL of the buffer? Given: Ka = 1.8 x 10-5 for
acetic acid.
%3D
A) 4.77
B) 4.71
C) 4.68
D) 4.62
E) none of these choices is correct
1 1171.: L f fll in h
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1:31 PM
3/18/2021
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iew History Bookmarks Profiles Tab Window Help )) * 33% [4 Thu 11:56 AM 三 101 Chem101 -> A app.101edu.co 山 ☆ Tp O Update : Question 6 of 10 Submit al Determine the pH of a buffer formed by dissolving 21.5 g HC,H,O2 and 37.7 g of NaC,H;O2 in 200.0 mL of solution. The value of Ka for HC,H5O2 is 6.3 x 10-5. < PREV 1 3 NEXT Based on your ICE table and definition of Ka, set up the expression for Ka in order to determine the unknown. Do not combine or simplify terms. Ka = 6.3 x 10-5 %3D %3D O RESET [0] [37.7] [0.176] [0.261] [0.880] [1.31] [0.178] [21.5] [2x] [21.5 - x] [37.7 + x] [0.176 - x] [0.261 + x] [0.880 - x] [0.888] [x] [1.31 + x] [0.178 + x] [0.888 + x] lil