What is the pH of a buffer that is made by mixing 20.0 mL of 0.10 M H2CO3 and 10.0 mL of 0.20 M NaHCO3? (Ka1 for H2CO3 = 4.2 x 10-7).O A. 9.25О В. 0.62O C. 7.00O D. 6.38

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What is the pH of a buffer that is made by mixing 20.0 mL of 0.10 M H,CO3 and 10.0 mL of 0.20 M NaHCO3? (Ka1 for H,CO3 = 4.2 x 10-7). O A. 9.25 ОВ. 0.62 O C. 7.00 2 D. 6.38

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

What is the pH of a buffer that is made by mixing 20.0 mL of 0.10 M H2CO3 and 10.0 mL of 0.20 M NaHCO3? (Ka1 for H2CO3 = 4.2 x 10-7).
O A. 9.25
О В. 0.62
O C. 7.00
O D. 6.38

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