Unformatted text preview: system Temperature Scales ° F ° C K T F = T c * (180 ° F/100 ° C) + 32 ° F ° C = 273.15 K = 32 ° F T K = T C + 273.15 K Prefixes Use prefixes to express smaller and larger units Kilo (k) = 1,000 Centi (c) = 1/100 Milli (m) = 1/1000 Micro ( μ ) = 106 Nano (n) = 109 Density = mass/volume Units – kg/m 3 or g/mL (also g/cm 3 ) D water = 1 g / mL 1.7 Reliability (and Uncertainty) in Measurements Measurements always have some degree of uncertainty (“error”) Significant digits = the certain digits and the 1 st uncertain (rounded/estimated) digit...
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This note was uploaded on 04/07/2008 for the course CHM 101 taught by Professor Ruths during the Fall '08 term at UMass Lowell.
 Fall '08
 Ruths
 Chemistry, pH

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