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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
In an experiment to determine the molar mass of an unknown solid acid, a student calculated the following results:
Trial # | Molar mass (g/mol) |
---|---|
1 | 117.29 |
2 | 132.04 |
3 | 146.82 |
Average | 132.05 |
The actual molar mass of the acid is 132.02 g/mol, therefore these results are:
accurate and precise |
||
accurate but not precise |
||
precise but not accurate |
||
neither accurate nor precise |
||
it is impossible to say with the given information |
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