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Concept explainers
Interpretation:
The given problem needs to be solved with correct number of significant figures.
Concept introduction:
Accuracy defined as an accurate measurement that is close to the accepted value whereas, Precision defined as a set of precise measurements that shows a little variation.
The precision of a measurement is denoted by the number of digits reported and the reported digits are termed as significant figures. Significant figures include all known digits plus one estimated digit.
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Answer to Problem 6STP
Correct answer: The correct option is (d).
Explanation of Solution
Reason for correct option: All the three measurements need to be aligned on their decimal points and added.
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Hence, the correct option is (d).
Thus, 21.6 cm is the answer.
Chapter 2 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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