C1_properties_fillin_outline_POST.pdf - Learning Objectives You should be able to \u2022 utilize dimensional analysis to do unit conversions \u2022 explain

# C1_properties_fillin_outline_POST.pdf - Learning Objectives...

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2 ,± ² Dimensional Analysis A football field is 100 yards long A yard is 3 feet A foot is 12 inches An inch is 2.54 cm How many cm in a football field? ,³ ² Density and Temperature Density: mass of certain volume of substance Temperature SI unit is Kelvin – should always work in Kelvin o C to K o F to o C ,´ ² Making Measurements Measurements have some degree of uncertainty ,µ ² Precision vs. Accuracy Precision: Accuracy: 2 ,± ² Significant Figures Represent precision of measurement Rules with zeros can be tricky Leading zeros (0.015) Captive zeros (Chem 101) Trailing zeros (150 vs. 150. vs. 150.0) Exact numbers (not measurements) ,³ ² Scientific Notation: A review 11000 = 0.00021 = 0.001021 = 1730= 6.022 x 10 -23 = ,´ ² Math and Sig Figs Multiplication and division 4.56x1.4= Addition and Subtraction: 1.3 1.225 + 10.45 3 ,± ² Units The unit is the scale of which a measurement is made All measurements should have a unit Units can help direct how a problem should go  #### You've reached the end of your free preview.

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• Fall '08
• Kenney
• • •  