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[DOC File]Chapter 1 Chemistry: Matter and Measurement
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B. Rules for Counting Sig Figs. Rule #1: Rule #2: Rule #3: Rule #4: You must memorize the rules and learn to use them or lose points throughout the year! Example 1L.2 State the number of significant figures in the following set of measurements: 1.2304 mm. 1.23400 cm. 1.200 x 105 mL. 0.0230 m. 0.02 cm. 8 ounces = 1 cup. 30 cars in the parking lot
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[DOC File]ASDL Community | Sharing Scientific Collections
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Significant Figures. Significant figures are a reflection of a measurement’s magnitude and uncertainty. The number of significant figures in a measurement is the number of digits known exactly plus one digit whose value is uncertain. A few simple rules can be learned to …
significant figures rules and examples

[DOC File]Significant Figures and Measurement Activity
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Rules for deciding the number of significant figures in a measured quantity: (1) All nonzero digits are significant: 1.234 g has 4 significant figures, 1.2 g has 2 significant figures. (2) Zeroes between nonzero digits are significant: 1002 kg has 4 significant figures, 3.07 mL has 3 significant figures.
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[DOC File]OCR AS and A Level Psychology - Teacher Guide: Descriptive ...
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The most common are 1, 2 or 3 significant figures. Rules: The first non-zero digit reading from left to right is the first significant figure. For numbers 5 and above we round up. For numbers 4 and below we round down. Worked examples: 1 significant figure: 4 2 3 2 4 9 = 400000 (rounded down) 1st sig figure ...
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[DOCX File]Biology 513 Chapter 13/Unit Summary
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I can identify the number of significant figures in a given number I can use the significant figure rules for x / + - to correctly round answers I can use scientific notation and interpret the meaning of the power of ten.
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[DOC File]Chemistry Midterm Exam Review
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Significant Figures – adding, subtracting, multiplying, dividing. Scientific Notation - adding, subtracting, multiplying, dividing. Metric Conversions. Dimensional Analysis. Temperature Conversions. Density – D=m/V, V=LWH, V=(r2h, V=Vf - Vi. Determine the number of significant figures in the following numbers. a. 1 SF b. 2 SF c. 4 SF d. 6 ...
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[DOC File]UNIT 1 Notes: Scientific Notation, Significant Figures ...
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There are five rules for identifying significant figures. 1) Non-zero digits and zeros between non-zero digits are ALWAYS significant. 2) Leading zeros (zeros at the beginning of numbers) are NOT significant. 3) Zeros to the right of all non-zero digits are only significant if the decimal point is shown.
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[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”):
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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]Guidelines for the Expression of the Uncertainty of ...
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The numerical value of the measurement result should in the final statement normally be rounded to the least significant figure in the value of the expanded uncertainty assigned to the measurement result. For the process of rounding, the usual rules for rounding of numbers have to be used (for further details on rounding see ISO 31-0:1992 ...
significant figures rules and examples

Significant figures rules pdf