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a buffer?

a buffer?

Chemistry
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 #: 26 Which combination will NOT act as a buffer? A. 0.1 M H2CO3 and o.4 M N22CO3 B. 1.0 M C5H5NHCI and 1.5 M C;H5N C. 0.50 M HNO2 and 1.5 M NANO2 D. 0.020 M NaH2PO4 and o.15 M K2HPO4
Transcribed Image Text:Question #: 26 Which combination will NOT act as a buffer? A. 0.1 M H2CO3 and o.4 M N22CO3 B. 1.0 M C5H5NHCI and 1.5 M C;H5N C. 0.50 M HNO2 and 1.5 M NANO2 D. 0.020 M NaH2PO4 and o.15 M K2HPO4
Question #: 28 What is the pH of a 1.00 L solution that is initially o.500 M HC2H3O2 (pKa = 4.74) and o.500 M NaC2H3O2, after the addition of o.10 mol of HCl? Ignore any volume change from the addition of HCl. pH = 1 Report your answer to two DECIMAL places. Do NOT include units in your answer. 1.
Transcribed Image Text:Question #: 28 What is the pH of a 1.00 L solution that is initially o.500 M HC2H3O2 (pKa = 4.74) and o.500 M NaC2H3O2, after the addition of o.10 mol of HCl? Ignore any volume change from the addition of HCl. pH = 1 Report your answer to two DECIMAL places. Do NOT include units in your answer. 1.
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