Worksheet 1 - Dr. Ramesh Arasasingham WORKSHEET 1 Units and...

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Dr. Ramesh Arasasingham WORKSHEET 1 Units and Significant Figures in Data The units identify the scale that is used in making a measurement and are essential for the measurement to be meaningful. Quantitative measurements, which are reported as a number and the units, are common to many scientific observations, applications, and theories. The number of digits, i.e., significant figures, reported for a numerical quantity conveys the quality of the measurement or analysis to the reader. In this course and in others, you will have to report your results by using a meaningful number of significant figures. In any business involving numerical values, the precision of these values, which is represented by the number of digits, can be vital information. Rules for Significant Figures Significant figures are the repeatable digits and the first uncertain digit in a measurement or calculation. 1. Non zero digits : 1, 2, 3, 4, 5, 6, 7, 8 and 9 are always significant. 2.
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This note was uploaded on 11/19/2010 for the course CHEMISTRY Chem 1A Di taught by Professor Rameshdarasasingham during the Spring '10 term at UC Irvine.

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Worksheet 1 - Dr. Ramesh Arasasingham WORKSHEET 1 Units and...

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