'Significant figures' diaporamas de présentation

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Basic Concepts

1. Basic Concepts. Chapter Outline. States of Matter Chemical and Physical Properties Chemical and Physical Changes Mixtures, Substances, Compounds, and Elements Measurements in Chemistry Units of Measurement. Chapter Outline. Use of Numbers

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Chapter Menu

Analyzing Data. Section 2.1 Units and Measurements Section 2.2 Scientific Notation and Dimensional Analysis Section 2.3 Uncertainty in Data Section 2.4 Representing Data. Click a hyperlink or folder tab to view the corresponding slides. Exit. Chapter Menu.

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Welcome to Ms. Raines Class

1 st day opener Sign up for class remind with the app find Honors Chemistry with code: @h-chemsem1 Or text @h-chemsem1 to 81010. Welcome to Ms. Raines Class. Day 1 - Agenda. Opener: Sign up for remind (see dry erase board) Receive/Review: Syllabus,

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Periodic Table

Periodic Table. Kelter, Carr, Scott, Chemistry A World of Choices 1999, page 74. History of the Periodic Table. Dmitri Mendeleev. Russian - 1872 Invented periodic table Organized elements by properties Arranged elements by atomic mass Predicted existence of several unknown elements

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Pearson Prentice Hall Physical Science: Concepts in Action

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Unit 2:SCIENTIFIC MEASUREMENT

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Accuracy & Precision

Accuracy & Precision. Two important points in measurement. Accuracy and Precision At the conclusion of our time together, you should be able to:. Explain the difference between the accuracy and precision Give examples of accuracy and precision. Accuracy.

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Add to table of contents:

Add to table of contents:. Sig. Fig. Examples Pg. 12 Significant Figures Pg. 13. Significant Figures. Writing numbers to reflect precision. Exact Numbers vs. Measurements. Sometimes you can determine an exact value for a quality of an object. Often by counting.

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Chemistry SOL Review by Anne Mooring (Jamestown High School, Williamsburg VA, 2006)

Chemistry SOL Review by Anne Mooring (Jamestown High School, Williamsburg VA, 2006). Part 1: Scientific Investigations Lab Equipment Scientific notation Significant figures The Metric System Density measurement and calculations Lab Methods Accuracy and precision Error Analysis

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General Chemistry CHEM 1103 Summer, 2003

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Significant Figures

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Significant Figures & Scientific Notation

Significant Figures & Scientific Notation. Physics. Significant Figures. Indicate accuracy of measurements Several rules for # of significant figures.. Non-zero digits are always significant. Any zeros between two significant digits are significant.

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Measurements:

Measurements: . Every measurement has UNITS. Every measurement has UNCERTAINTY. Accuracy and Precision in Measurements. Accuracy: how close a measurement is to the accepted value. Precision: how close a series of measurements are to one another or how far out a measurement is taken.

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Significant Figures

Significant Figures. Used to report all precisely known numbers + one estimated digit. Rule #1. Every nonzero digit is significant Examples: 24 = 2 3.56 = 3 7 = 1. Rule #2. Zeros between non-zeros are significant Examples: 7003 = 4 40.9 = 3 . Rule #3.

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