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Chapter 1 Review Section 1

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Reviewing Fundamental Concepts of Measurement and Calculation

Review Section 1-2 Homework

Reading Preparation

Textbook assignment: Read Kotz and Triechel, Chemistry and Chemical Reactivity Review Section: The tools of quantitative chemistry (pp. 22-31).

Study Notes

This section throws you into the nitty gritty of the material for this text. There are lots of examples. Slow down and work your way through each one. Do not skip over them. The basics you master now will really pay off during the rest of the course.

Important Formulae

ConceptRelationshipFormulaSymbolsTypical Units
Temperature conversion Kelvin to Celsius T   ( K )   =   1 K 1 ° C ( T  ° C   +   273.15  ° C ) T (K): Temperature in Kelvin
T *C: Temperature in Celsius
K or C
Temperature conversion Kelvin to Celsius T   ( C )   =   1 ° C 1 K ( T   ( K )     273.15   K ) T (K): Temperature in Kelvin
T *C: Temperature in Celsius
K or C
Energy conversions Calories to Joules 1 cal = 4.184 J cal: calorie (note small c!)
J: Joules
cal: heat required to raise 1 gm water 1 °C, or J
Error Percent error as proportion of measurement %   error   =   | error   in   measurement | accepted   value     100 % % error: error as fraction of measurement
error in measurement: difference between individual measurement and expected value or average
accepted value: standard value or average
Standard deviation Statistical error range σ   = 1 n     1   ( x i     x avg ) 2 σ: Standard deviation
n: number of measurements
xi: ith measurement
xavg: average of measurements

Web Lecture

Read the following weblecture before chat: Scientific Method: the Uses of Experiment

Take notes on any questions you have, and be prepared to discuss the lecture in chat.

Study Activity

Chat Preparation Activities

Chapter Quiz

Lab Work

Please read Illustrated Guide to Home Chemistry Experiments: All Lab, No Lecture, Chapter 2 - Lab Safety, and survey pages 52-67. Make sure that you understand how to determine the safe storage and disposal methods for a particular chemical.