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Unformatted text preview: Chemistry 2Ac W2009 c W2009 (Ch1 (Ch15) 5) The result of multiplication or division may contain only as many significant figures as the least precisely known quantity. Example: (14.79 cm) x (12.11 cm) x (5.05 cm) = 904 cm For addition or subtraction : 15.02 g 9986.0 g 3.518 g 10,004.5 38 g Rounding off numerical results: Example: Round off 15.453 to 3 significant figures: 15.5 Round off 14.54 to 3 significant figures: 14.5 Drop last two digits: 38 +...
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This note was uploaded on 02/25/2009 for the course CHEM chem 2a taught by Professor Ng during the Spring '09 term at UC Davis.
 Spring '09
 ng
 Atom, pH

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