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 following results were obtained. (See attached image) (a) Calculate the mean w/v percentage of acetic acid in the sample. (b) Calculate the standard deviation for the results. (Take note if n-1 should be used) (c) Calculate the 90% confidence interval for the mean. (d) (d) At the 90% confidence level, could any of the results be discarded?
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 following results were obtained. (See attached image) (a) Calculate the mean w/v percentage of acetic acid in the sample. (b) Calculate the standard deviation for the results. (Take note if n-1 should be used) (c) Calculate the 90% confidence interval for the mean. (d) (d) 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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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 following results were obtained. (See attached image)
(a) Calculate the mean w/v percentage of acetic acid in the sample.
(b) Calculate the standard deviation for the results. (Take note if n-1 should be used)
(c) Calculate the 90% confidence interval for the mean.
(d) (d) At the 90% confidence level, could any of the results be discarded?
Transcribed Image Text:Sample
Sample Volume, mL
Ba(OH), Volume, mL
1
50.00
43.17
49.50
42.68
25.00
21.47
50.00
43.33
2 34
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