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please help find average and standard deviation

please help find average and standard deviation

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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please help find average and standard deviation

Trial # 1 2 3 PART III.7 Mass of Urea (g) where, 5.965 5.764 Standard deviation hint 5.934 The average or mean, is defined by: • each ₂ is the value of the data point. n is the number of trials. 90% confidence limit Moles of Urea (mol) 0.0993239 0.0959627 0.0988077 18 S = Average enthalpy of reaction for the dissolution of urea in J/mol. Standard deviation of your measured values of the enthalpy of reaction for the dissolution of Urea (J/mol) qrxn (J) 2459.59 1267.92 1182.22 Σαΐ n Σ (x₁ - x)² n - 1 Unrounded 24763.5 Unrounded 13212.6 11964.8 The standard deviation, s, measures how close values are clustered about the mean. The standard deviation for small samples is defined by: 3 3 AHrxn 3 (J/mol) P Rounded 2.476 ×104 1.321 ×104 1.196 ×104 Rounded 3 3 3
Transcribed Image Text:Trial # 1 2 3 PART III.7 Mass of Urea (g) where, 5.965 5.764 Standard deviation hint 5.934 The average or mean, is defined by: • each ₂ is the value of the data point. n is the number of trials. 90% confidence limit Moles of Urea (mol) 0.0993239 0.0959627 0.0988077 18 S = Average enthalpy of reaction for the dissolution of urea in J/mol. Standard deviation of your measured values of the enthalpy of reaction for the dissolution of Urea (J/mol) qrxn (J) 2459.59 1267.92 1182.22 Σαΐ n Σ (x₁ - x)² n - 1 Unrounded 24763.5 Unrounded 13212.6 11964.8 The standard deviation, s, measures how close values are clustered about the mean. The standard deviation for small samples is defined by: 3 3 AHrxn 3 (J/mol) P Rounded 2.476 ×104 1.321 ×104 1.196 ×104 Rounded 3 3 3
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