'4 sig figs' presentation slideshows

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Chemistry

Chemistry. Chapter 3 Scientific Measurement. Qualitative Measurement. Gives results in a descriptive form Nonnumeric. Quantitative Measurement. Gives results in a definite form Usually as numbers and units. Scientific Notation. Shorthand way to express very large and very small numbers.

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Chemistry XL 14A

Chemistry XL 14A. Saturday, June 25, 2011 Syllabus Review of the Basics: Math of Chemistry/Science Fundamentals of Chemistry. Chem XL 14A. General Chemistry for Life Science Majors Atomic and Molecular Structure Quantum Mechanics Gas Laws Chemical Equilibrium Acids and Bases

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Guided Practice

Guided Practice. Sig Fig/Precision/Accuracy- 3. Question 1 (Sig Fig). 205=. Question 1 (Sig Fig). 205= 3 sig figs. Question 2. 0.00272=. Question 2. 0.00272= 3 sig figs. Question 3. 2860=. Question 3. 2860= 3 sig figs. Question 3. 2860= 3 sig figs Though 2860. = 4 sig figs.

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Chemical Foundations

Chemical Foundations. Chapter 1. Chemistry. Chemistry deals with situations in which the nature of a substance is changed by altering its composition so that entirely new substances are synthesized or particular properties of existing substances are enhanced. Science.

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Chapter 3

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Chapter 3

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Measurement Unit Review Game

Measurement Unit Review Game. 10. rocket : space :: submarine :. sea land air cave. 10. Mr. Harper is the best teacher ever. True False. Please select a Team. Team 1 Team 2 Team 3 Team 4 Team 5 Team 6. 10. Leading zeros are never significant. True False

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Measurement & Significant Figures

Measurement & Significant Figures. Mrs. Page 2014-2015. By the end of this lesson you should be able to:. Distinguish between exact and measured numbers. Identify different pieces of lab equipment, what it measures & the units of measurement

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Physics 621

Physics 621. Math Review. SCIENTIFIC NOTATION. Scientific Notation is based on exponential notation (where decimal places are expressed as a power of 10).

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Ch. 3, Scientific Measurement

Ch. 3, Scientific Measurement. Measurement. Measurement : A quantity that has a number and a unit . Like 52 meters. Scientific Notation. Writing long numbers as smaller ones to a power of ten. 1,400,000 = 1.4 x 10 6 = 1.4E6

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Back to the Basics

Back to the Basics. Science Lab Equipment. Graduated Cylinder. Measure about 26.1 mL. Scale. Weigh the object. Ruler. Measure the length of the object. SI Units. International System of Units (SI). Metric Prefixes. BIGGER SMALLER. 1000. k kilo. BIG. 100. h hecto. 10. dk

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Measurements & Math

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Uncertainty in measurement

Uncertainty in measurement. Every measurement has error associated with it. The more precise the measurement the less error. Error in a measurement is indicated by the number of significant figures in the number. Uncertainty in measurement. Which measurement has less error?

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Mathematical Operations with Significant Figures

Mathematical Operations with Significant Figures. Ms. McGrath Science 10. Rounding rules. 1. If the rounding number is less than 5, there is no change example: 2.634 if we want to round this value to contain only 2 sig figs we keep the 2 and 6 and drop the 3 and 4

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Significant Digits

Significant Digits. Ch 1 Notes. Significant Digits. Why pay attention to significant digits? (Essential Question) Used to round measured values when involved in calculations Used to guarantee that the calculated values are not shown to be more precise than the measurements.

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Error or Uncertainty in Measurement

Error or Uncertainty in Measurement. All measurements have some uncertainty. Some measuring instruments have more uncertainty then others. How much water is in the beaker? 53 mL? 52.8 mL. 52.8mL is more accurate then 53mL but the .8 is uncertain. Significant Figures ( sigfigs ).

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Uncertainty in Measurement and Significant Figures

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SIGNIFICANT FIGURES

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The Metric System (SI)

The Metric System (SI). See http://online.cctt.org/physicslab/content/Phy1/lessonnotes/metricsystem/lessonSIsystem.asp. The Metric System (SI). See http://online.cctt.org/physicslab/content/Phy1/lessonnotes/metricsystem/lessonSIsystem.asp. Significant Figures (or Digits).

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