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
please help me find average and standard deviation
Transcribed Image Text:Trial #
1
2
3
PART III.5
Tf (ave), pure H₂O
(°C)
Unrounded
-0.100
Tf, unknown (aq)
(°C)
► Standard deviation hint
-2.6
Average molar mass of unknown (g/mol)
-2.6
-2.6
Standard deviation of molar mass of unknown
Freezing Point Depression of unknown
(AT) (°C)
90% Confidence limit of molar mass of unknown
Unrounded
2.5000
2.5000
2.5000
Using the data obtained and values calculated for Part III, complete the following table.
Unrounded
3
3
Rounded
3
2.5
2.5
2.5
Molar mass of unknown,
(g/mol)
Unrounded
57.9604
362.252
57.9604
57.9604
Rounded
3
3
3
X
Rounded
58.0
58.0
58.0
Expert Solution
Step 1: Interpretation of problem statement
Given Data:
To determine:
Average and standard deviation
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