Lecture 1

Lecture 1 - Chemistry 128 Chemistry of Life Monday,...

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Unformatted text preview: Chemistry 128 Chemistry of Life Monday, Wednesday 3:55-5:15 PM Loree Hall 022 Introduction Dr. Kuang Yu Chen Wright Chemistry Lab A108 [email protected] 732-445-3739 Office hours: MW 5:15-5:30 Loree Hall 022 Friday 3:30-5:00 Wright Chemistry Lab A108 Dr. Kuang Yu Chen Wright Chemistry Lab A108 [email protected] 732-445-3739 Office hours: MW 5:15-5:30 Loree Hall 022 Friday 3:30-5:00 Wright Chemistry Lab A108 Instructor and Office Hours Quizzes: 20 points Exam 1: 20 points Exam II: 20 points Final Exam : 40 points. Grading 1.1 The Discovery Process 1.2 Matter and Properties 1.3 Significant Figures and Scientific Notation 1.4 Units and Unit Conversion 1.5 Experimental Quantities Chemistry : the study of matter (properties, physical and chemical changes) Scientific method: a systematic approach to the discovery of new info Observation à questioning à pattern recognition à hypothesis and theory à experiment à law and equation 1.2 Matter and Properties Data: ( measurement from experiments ) Results: ( outcome and conclusion of experiments ) States of Matter: ( solid, liquid, gas ) Properties: Physical, independent of composition/identity Chemical, related to composition/identity Intensive, independent of amount Extensive, dependent on amount Changes: Physical, changes independent of identity Chemical, chemical reaction Matter pure substance mixture element homogeneous Classification: Pure (elements, compounds), Mixture (homogeneous vs. heterogeneous) heterogeneous compound Chemical or physical property? a. Color b. Flammability c. Hardness d. Odor e. magnetism Chemical or physical change? a. Boiling water becomes steam b. Butter turns rancid c. Burning of wood d. Mountain snow pack melting in spring e. Decay of leaves in winter - Density - Specific gravity - Mass - Volume - Temperature - Length - Area - Color Intensive or extensive property? Significant Figures Scientific Notation Error, Accuracy, Precision, and Uncertainty Significant Figures in Calculation of Results Exact (Counted) and Inexact Numbers Rounding Off Numbers 1.3 Significant Figures and Scientific Notation...
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This note was uploaded on 03/07/2012 for the course 830 201 taught by Professor Leyton during the Fall '08 term at Rutgers.

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Lecture 1 - Chemistry 128 Chemistry of Life Monday,...

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