What are significant figures
[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.
[DOCX File]Significant Digits
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has three significant digits, thus . 0.0123. must also have three significant digits. 7. Any zeros to the right of a number and the right of a decimal point are significant. The value . 0.012300. and . 25.000. both contain five significant digits. The reason for this is that significant figures indicate to . what place a measurement is made.
[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.
[DOC File]Chemistry - North Thurston Public Schools
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Chemistry Name: Worksheet: Significant figures Date: A. Read pp. 56 - 62 and answer the following questions: 1. _____ (T/F) Significant figures include all the digits that can be known precisely and the last digit which must be estimated. 2. _____ (T/F) Significant figures are an indication of the precision of a measurement. 3.
[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
[DOC File]Guided notes on Accuracy, Precision, and significant ...
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Guided notes on Accuracy, Precision, and significant figures (aka “sig figs”): Author: Student Last modified by: Student Created Date: 1/3/2011 8:10:00 PM Company: HumbleISD Other titles: Guided notes on Accuracy, Precision, and significant figures (aka “sig figs”):
[DOC File]Significant Figures and Measurement Activity
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0.023 mL has 2 significant figures, 0.200 g has 3 significant figures. (5) When a number ends in zeroes that are not to the right of a decimal point, the zeroes are not necessarily significant: 190 miles may be 2 or 3 significant figures, 50,600 calories may be 3, 4, or 5 significant figures.
[DOC File]Significant Figures Practice Worksheet - PC\|MAC
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Significant Figures Practice Worksheet. How many significant figures do the following numbers have? 1) 1234 _____ 2) 0.023 _____ 3) 890 _____ 4) 91010 _____
[DOC File]Significant Figure Rules
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Hence a number like 26.38 would have four significant figures and 7.94 would have three. The problem comes with numbers like 0.00980 or 28.09. Rule 2: Any zeros between two significant digits are significant. Suppose you had a number like 406. By the first rule, the 4 and the 6 are significant.
[DOC File]Significant Figures and Scientific Notation
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Since 0.34 has the fewest significant figures, your answer must only have 2 significant figures. 7.55 meters x 0.34 meters = 2.6 meters2 Scientific Notation – a given number is written as the product of two numbers: a coefficient and 10 raised to a power.
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