Sample 1 2 3 4 Sample Volume, mL 50.00 49.50 25.00 50.00 Ba(OH)2 Volume, mL 43.17 42.68 21.47 43.33 A 0.1475-M solution of Ba(OH)2 was used to titrate the acetic acid (60.05 g/mol) in a dilute aqueous solution. The above results were obtained. 1. Calculate the mean w/v percentage of acetic acid in the sample 2. Calculate the standard deviation for the results. 3. Calculate the 90% confidence interval for the mean. 4. At the 90% confidence level, could any of the results be discarded?

Sample 1 2 3 4 Sample Volume, mL 50.00 49.50 25.00 50.00 Ba(OH)2 Volume, mL 43.17 42.68 21.47 43.33 A 0.1475-M solution of Ba(OH)2 was used to titrate the acetic acid (60.05 g/mol) in a dilute aqueous solution. The above results were obtained. 1. Calculate the mean w/v percentage of acetic acid in the sample 2. Calculate the standard deviation for the results. 3. Calculate the 90% confidence interval for the mean. 4. At the 90% confidence level, could any of the results be discarded?

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

Sample
1
2
3
4
Sample Volume, mL
50.00
49.50
25.00
50.00
Ba(OH)2 Volume, mL
43.17
42.68
21.47
43.33
A 0.1475-M solution of Ba(OH)2 was used to titrate the acetic acid (60.05 g/mol) in a dilute aqueous solution.
The above results were obtained.
1. Calculate the mean w/v percentage of acetic acid in the sample
2. Calculate the standard deviation for the results.
3. Calculate the 90% confidence interval for the mean.
4. At the 90% confidence level, could any of the results be discarded?

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