Problem SolVing and Dimensional Analysis Problem: Suppose you have to pick up doughnuts on your way to school. You need 2 dozen for the class, but you stop at a store that only sells by the doughnut. How many do you get? Problem: The cost of a jar of pickles is $2.06. You have S10.00. How many jars of pickles can you pick up? Both problems involve conversions. Conversion factor- a ratio of the two parts of statement that relates the two units (= 1) Ex. 2.85 cm ? in Ex. 1.12 in =? cm
Problem SolVing and Dimensional Analysis Problem: Suppose you have to pick up doughnuts on your way to school. You need 2 dozen for the class, but you stop at a store that only sells by the doughnut. How many do you get? Problem: The cost of a jar of pickles is $2.06. You have S10.00. How many jars of pickles can you pick up? Both problems involve conversions. Conversion factor- a ratio of the two parts of statement that relates the two units (= 1) Ex. 2.85 cm ? in Ex. 1.12 in =? cm
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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
Transcribed Image Text:Chemistry:
Matter and Measurements
Objectives:
- To learn how dimensional analysis can be used to solve various types of problems
- To learn the three temperature scales
- To learn to convert from one scale to another; continue to
develop problem solving skills
Problem Solving and Dimensional Analysis
Problem: Suppose you have to pick up doughnuts on your way to school. You need 2 dozen for
the class, but you stop at a store that only sells by the doughnut.
How many do you get?
Problem: The cost of a jar of pickles is $2.06. You have $10.00. How many jars of piekles can
you pick up?
Both problems involve conversions.
Conversion factor- a ratio of the two parts of statement that relates the two units (= I)
Ex. 2.85 cm =? in
Ex. 1.12 in = ? cm
Converting from one step to another
Step 1 To convert from one unit to another, use the equivalence statement that relates the two
units. The conversion factor needed is a ratio of the two parts of the equivalence statement.
Step 2 Choose the appropriate factor by looking at the direction of the required change (Make
sure the unwanted units cancel).
Step 3 Multiple the quantity to be converted by the conversion factor give the quantity with the
desired units,
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