4. Richards and Willard determined the molar masses of Li and collected the following data: Experiment Molar mass, g/mol 6.9391 2 6.9407 3 6.9409 4 6.9399 5 6.9407 6 6.9391 7 6.9406 a. Calculate the mean, SD, % RSD, and the confidence interval. b. Express the obtained measurements with the uncertainty of the replicates.

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4. Richards and Willard determined the molar masses of Li and collected the following
data:
Experiment
Molar mass, g/mol
1
6.9391
6.9407
3
6.9409
6.9399
5
6.9407
6.9391
7
6.9406
a. Calculate the mean, SD, % RSD, and the confidence interval.
b. Express the obtained measurements with the uncertainty of the replicates.
4.
Transcribed Image Text:4. Richards and Willard determined the molar masses of Li and collected the following data: Experiment Molar mass, g/mol 1 6.9391 6.9407 3 6.9409 6.9399 5 6.9407 6.9391 7 6.9406 a. Calculate the mean, SD, % RSD, and the confidence interval. b. Express the obtained measurements with the uncertainty of the replicates. 4.
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