Chemistry calculator significant figures

    • [DOC File]Simple Statistics Used In Chemistry

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      By definition, for a measurement to have the correct number of significant figures, there should only be one uncertain digit at the end of the number. The standard deviation in the example above is 0.0166 g. Since this shows three uncertain digits, the standard deviation should be rounded to 0.02 g. Then the mean should be rounded to 4.98 g.

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    • [DOC File]Significant Figures Practice Worksheet

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      Practice Problems for Significant Figures . RULE -1: If the decimal is . Present: Find the first non zero on the left, then count all digits to the . RIGHT. If the decimal is . Absent: Find the first non zero on the right, then count all digits to the . LEFT. RULE-2: Every digit in scientific notation is Significant

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    • [DOC File]UNIT 1 Notes: Scientific Notation, Significant Figures ...

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      UNIT 1 NOTES: Scientific Notation, Significant Figures & Rounding, Metric Units (Chapter 3 in your Chemistry Text) Scientific Notation. When scientists talk about very large or very small numbers, it gets difficult to name the number (e.g. a one followed by 15 zeros is quadrillion or quintillion?) and it’s painstaking to write them down.

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    • [DOC File]1. Significant Figures

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      Significant figures are all the digits of a measurement that are known for certain plus one that is estimated. When measurements are used in calculations, the resulting answers cannot have a greater precision than the crudest instrument (the one with the least precision) used to take the measurements.

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    • [DOC File]Rules for Using Significant Figures in Mathematical Operations

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      12 has two significant figures and 3.00 has three, so the answer should only have two. For example, 3.20 x 5.04 = 16.128 ( 16.1. The starting values only have three significant figures each, so round the answer to three significant figures, 16.1.

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    • [DOC File]Chapter 1 Chemistry: Matter and Measurement

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      Example 1L.3 Solve the following problems and state the answers with the proper number of significant figures. a. Calculate the area of an object with a length of 1.345 m and a width of 0.057 m.

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