Exam Practice Sheet

C103 Introduction to Chemical Principles -1247775170307000Exam 1 Data Booklet Fundamental SI Units of Measure Physical Quantity Name of Unit Abbreviation Mass Kilogram kg Length Meter m Temperature Kelvin K Amount of substance Mole mol Time Second s Electric Current Ampere A Luminous Intensity Candela cd Prefixes for Multiples of SI Units Factor Prefix Symbol Example 1000000000000 = 1012 Tera T 1 teragram (Tg) = 1012 g 1000000000 = 109 Giga G 1 gigameter (Gm) = 109 m 1000000 = 106 Mega M 1 megameter (Mm) = 106 m 1000 = 103 Kilo k 1 kilogram (kg) = 103 g 100 = 102 Hector h 1 hectogram (hg) = 100 g 10 = 101 Deka da 1 dekagram (dag) = 10 g 0.1 = 10-1 Deci d 1 decimeter (dm) = 0.1 m 0.01 = 10-2 Centi c 1 centimeter (cm) = 0.01 m 0.001 = 10-3 Milli m 1 milligram (mg) = 0.001 g Prefixes for Multiples of SI Units Factor Prefix Symbol Example 0.000001 = 10-6 Micro ? 1 micrometer (?m) = 10-6 m 0.000000001 = 10-9 Nano n 1 nanosecond (ns) = 10-9 s 0.000000000001 = 10-12 Pico p 1 picosecond (ps) = 10-12 s 0.000000000000001 = 10-15 Femto f 1 femtomole (fmol) = 10-15 mol Useful Conversion Factors Length. SI unit: meter (m) Energy. SI unit: joule (J) 1 km = 1000 m = 0.62137 mi 1 J = 1(kg.m2)/s2 = 0.23901 cal 1 mi = 5280 ft = 1760 yd = 1.6093 km 1 cal = 4.184 J 1 m = 100 cm = 1.0936 yd 1 eV = 1.602176 × 10-19 J 1 in = 2.54 cm 1 MeV = 1.602176 × 10-13 J 1 cm = 0.39370 in 1 kWh = 3.600 × 106 J 1 Angstrom = 10?10 m = 100 pm 1 Btu = 1055 J Mass. SI unit: kilogram (kg) Pressure. SI unit: pascal (Pa) 1 kg = 1000 g = 2.2046 lb 1 Pa = 1 N/m2 = 1 kg/(m.s2) 1 lb = 16 oz = 453.59 g 1 atm = 101325 Pa = 1.01325 bar = 760 mm Hg = 14.70 lb/in2 1 oz = 28.35 g 1 bar = 105 Pa 1 ton = 2000 lb = 907.185 kg 1 metric ton = 1000 kg = 1.102 tons 1 u = 1.66054 × 10-27 kg Temperature. SI unit: kelvin (K) Volume. SI unit: cubic meter (m3) 0 K = ?273.15 °C = ?459.67 °F 1 L = 10-3 m3 = 1 dm3 = 103 cm3 = 1.0567 qt K = °C + 273.15 1 gal = 4 qt = 3.7854 L °C = 5/9 (°F ? 32) 1 cm3 = 1 mL °F = (9/5 °C) + 32 1 in3 = 16.4 cm3 -159766085471000