Scan_Doc0035 - significant figures Calculations using...

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For Review 29 Matter Variable composition? Yes No Mixtures Yes No Heterogeneous Homogeneous e 1.14 --., organization of matter. ey Terms 'on l..2 c method =rrement b-vvh •• sis Scientific method Make observations Formulate hypotheses Perform experiments Models (theories) are explanations of why nature. behaves in a particular way. They are subject to modification over time and sometimes fail. Quantitative observations are called measurements. Consist of a number and a unit Involve some uncertainty Uncertainty is indicated by using significant figures • Rules to determine
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Unformatted text preview: significant figures Calculations using significant figures Preferred system is SI Temperature conversions TK = Tc + 273 law of conservation of mass 'on l..3 an 'on l..4 ::::::r::na.inty ~tfigures ( SOC) Tc = (TF -32F) 90F ( 90F) TF = Tc SOC + 32F Density error--.:?r.l!ITic error 'on l..5 ~tial notation ion l..6 m;::;: ~or method ional analysis 'on l..8 mass Density = volume 'on l..9 Matter can exist in three states: Solid Liquid Gas of matter) geneous mixture...
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This note was uploaded on 12/13/2010 for the course CHEM 2301 taught by Professor Bill during the Spring '10 term at South Texas College.

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