Additional Question 7. - Two technicians, Bill and Ted are asked to determine the pH of a 0.2 M phosphate buffer made the night before and then correct the pH if needed. They split the 3 L buffer equally between them and then both took a separate 100 ml sample of their buffer and determined the pH. Both technicians found the pH to be 7.2 BUT it was supposed to be 7.5. Ted used 290 ml of 0.1M Na2HPO4 to correct his buffer (his 1.5L) while Bill used 16 ml of 1 M NaOH to correct his 1.5 L buffer. • Calculate the final concentration of both buffers (show your calculations). Based on your result, explain which buffer could be used.

Additional Question 7. - Two technicians, Bill and Ted are asked to determine the pH of a 0.2 M phosphate buffer made the night before and then correct the pH if needed. They split the 3 L buffer equally between them and then both took a separate 100 ml sample of their buffer and determined the pH. Both technicians found the pH to be 7.2 BUT it was supposed to be 7.5. Ted used 290 ml of 0.1M Na2HPO4 to correct his buffer (his 1.5L) while Bill used 16 ml of 1 M NaOH to correct his 1.5 L buffer. • Calculate the final concentration of both buffers (show your calculations). Based on your result, explain which buffer could be used.

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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