CHM 2040- Final Exam Guide - Comprehensive Notes for the exam ( 22 pages long!)
Document Summary
Properties: intensive property: characteristic that doesn"t depend on amount of substance (ex- density, extensive property: characteristic that does depend on amount of substance ( ex- mass) Signi cant figures: writing numbers to re ect precision, the greater the number of signi cant gures the greater the certainty of the measurement, to determine the number of signi cant gures in a number , all non zero digits are signi ant. 3. interior zeros are signi cant (in between two non zero digits) leading zeros before the rst non zero digit are not signi cant. 4. trailing zeros are categorized as : after decimal point are always signi cant (45. 000, before decimal & after a non zero are always signi cant (140. 00) 0. 04450 = 4 signi cant gures, 5. 0003 = 5 sig gures, 10 dm = 1 m = unlimited sig gures,
