Khan academy significant figures chemistry

    • [PDF File]Barbe High School Science Resources

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      Barbe High School Science Resources Description Subject Teacher Link (Click on the image link below to access the websites) Prezi Biology Internet 4 Classrooms Biology Text to Speech . Biology Sponge Lab Biology Study Jams Scholastic Biology Biology Corner Biology Achieve the Core Biology Partnership Assessment for College & Careers Biology Biology Biology Electron Configuration Website Chemistry …


    • [PDF File]AP Chemistry Summer Assignment

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      Significant Figures in Measurement and Calculations A successful chemistry student habitually labels all numbers, because the unit is important. Also of great importance is the number itself. Any number used in a calculation should contain only figures that are considered reliable; otherwise, time and effort are wasted. Figures that are ...


    • [PDF File]SIGNIFICANT FIGURES, EXPONENTS, AND SCIENTIFIC NOTATION

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      2. Zero digits that occur between nonzero digits are significant. 202 contains three significant figures ⎫ In these examples, the zeros 450.5 contains four significant figures ⎬ are part of a measurement. 390.002 contains six significant figures ⎭ 3. Zeros at the beginning of a number (i.e., on the left-hand side) are considered to be placeholders and


    • [PDF File]Pre-AP Chemistry Summer Practice

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      5. Logon to Khan Academy or Google "Khan Academy" and watch the following videos entitled: Name changes to Add H & drop 1 charge a. "Introduction to Significant Figures" d. "Multiplying and Dividing with Significant Figures" b. "Rules of Significant Figures" e. "Unit Conversion Within the Metric System"


    • [PDF File]Chem 110 Unit 1 Lecture Outline 2014

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      A. Significant Figures in measurements Record all accurate numbers plus one estimate number . 0g 1g 2g 3g 4g 0g 1g 2g 3g 4g The number of Sig. Fig. in measured numbers will show the uncertainty of the measuring device. B. Determining the Number of Significant Figures in a Measured value 1. All non-zero digits are significant 2. Zeros between ...


    • [PDF File]Honors Chemistry Summer Assignment

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      Identifying and calculating significant figures (like on a worksheet) Use the khan academy videos (4 videos, and review page) to learn how to identify the significant figures in a given number, and how to limit your reported answer by the given rules.


    • [PDF File]Campus Academic Resource Program Understanding Significant …

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      Campus Academic Resource Program Understanding Significant Figures . 1. This handout will: • Explain the term “significant figures” and explain its importance • Explain how to determine what digits are considered significant • Review rules for rounding numbers with the concept of significant figures in mind


    • [PDF File]CHM 130 Sig Fig Practice Problems

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      Significant digits or figures are not something we make up to terrorize you all semester long. They represent the accuracy of a measurement. For example, a cheap bathroom scale bought at the dollar store reads your weight as 152 pounds, not 152.45809 pounds. It is not that accurate. Significant digits are very important in all measurements. Now ...


    • [PDF File]Practice Worksheet for Significant Figures - Doolan's Chemistry …

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      Period:_____ Practice Worksheet for Significant Figures Name:_____ Identify the sums or differences of the following to the correct number of significant figures: 41) 8.41 X 1014 + 9.71 X 1012 = 8.51 E 14 42) 5.11 X 1023 - 4.2 X 1021 = 5.1 E 23 43) 8.2 X 1030 + 4.560 X 1023 = 8.2 E 30 44) 6.023 X 10-23 - 2.1 X 10-20 = -2.9 E -20 Express the product and the quotients of the following to the correct number of …


    • [PDF File]Significant Figure Rules - Rice University

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      Are Significant Figures Important? A Fable A student once needed a cube of metal that had to have a mass of 83 grams. He knew the density of this metal was 8.67 g/mL, which told him the cube's volume. Believing significant figures were invented just to make life difficult for chemistry students and had no practical use in the


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