equations

# Equations - Fundamental Physical Constants Atomic mass unit Mass of electron Mass of neutron Mass of proton 1 amu = 1.660539x1027 kg 1 g =

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Unformatted text preview: Fundamental Physical Constants Atomic mass unit Mass of electron Mass of neutron Mass of proton 1 amu = 1.660539x1027 kg 1 g = 6.022142x10 amu me = 5.485799x104 amu 23 important conversions Length: measured in m 1m = 39.37 in. 1m = 1.094 yd 1 in. = 2.54 cm (exactly) 1 mi = 5280 ft 1 mi = 1.609 km 1 angstrom () = 1010 m 1 km= .6214 mi 1 ft = 30.48 cm Mass: measured in g 1 kg = 2.205 lb 1 lb = 453.59 g 1 lb = 16 oz 1 oz = 28.35 g 1 ton = 2000 lb 1 metric ton = 1000kg 1 metric ton = 1.103 tons 1 g = 6.022x1023 amu Volume: measured in cm3 1 L = 1000 mL 1 L = 1000 cm3 1 L = 1.057 qt 1 gal = 3.785 L 1 gal = 128 fl oz 1 gal = 4 qt 1 gal = 8 pt Energy: measured in J 1 cal = 4.184 J (exactly) 1000 cal = 1 Cal 1 kWh = 3.60x105J Temperature: 1 L * atm = 101.33 J K = C + 273 C = ( F 32 ) / 1.8 F = 1.8 C + 32 me = 9.109382x1031 kg mn= 1.008665 amu mn = 1.674927x10 mp= 1.007276 amu 27 kg mp= 1.672622x1027 kg Density: measured in g/cm3 Density = Mass/Volume Commonly used density: Water: 1.0 Ice: 0.92 Ethanol: 0.789 Lead: 11.4 Copper: 8.96 Gold: 19.3 Aluminum: 2.7 Platinum: 21.4 Iron: 7.86 Titanium: 4.5 Charcoal: 0.57 Glass: 2.6 Calculating energy requirements Q=msT Q: energy (J) m: mass (g) s: heat capacity of material (J/gC) T: change in temperature (T2T1 C) commonly used specific heat capacities Lead: .128 Gold: .128 Silver: .235 Copper: .385 Iron: .449 Aluminum: .903 Ethanol: 2.42 Water: 4.184 Common Polyatomic Ions Acetate: C2H3O2 Carbonate: CO32 Hydrogen carbonate: HC03 (or bicarbonate) Hydroxide: OH Nitrate: NO3 Nitrite: NO2 Chromate: CrO42 Phosphate: PO43 Dichromate: Cr2O72 Hydrogen phsophate: HPO42 Ammonium: NH4+ hypochlorite: CLO Chlorite: CLO2 Chlorate: CLO3 Perchlorate: CLO4 Sulfate: SO42 Sulfite: SO32 permanganate: MnO4 Hydrogegen sulfite: HSO3 (or bisulfite) Hydrogen sulfate: HSO4 peroxide: O22 cyanide: CN 1m = 39.37 in. 1m = 1.094 yd 1 in. = 2.54 cm (exactly) 1 mi = 5280 ft 1 mi = 1.609 km 1 angstrom () = 1010 m 1 km= .6214 mi 1 ft = 30.48 cm 1 kg = 2.205 lb 1 lb = 453.59 g 1 lb = 16 oz 1 oz = 28.35 g 1 ton = 2000 lb 1 metric ton = 1000kg 1 metric ton = 1.103 tons 1 g = 6.022x1023 amu 1 L = 1000 mL 1 L = 1000 cm3 1 L = 1.057 qt 1 gal = 3.785 L 1 gal = 128 fl oz 1 gal = 4 qt 1 gal = 8 pt 1 cal = 4.184 J (exactly) 1000 cal = 1 Cal 1 kWh = 3.60x105J 1 L * atm = 101.33 J K = C + 273 C = ( F 32 ) / 1.8 F = 1.8 C + 32 Acetate: C2H3O2 Carbonate: CO32 Hydrogen carbonate: HC03 (or bicarbonate) Hydroxide: OH Nitrate: NO3 Nitrite: NO2 Chromate: CrO42 Dichromate: Cr2O72 Phosphate: PO43 Hydrogen phsophate: HPO42 Ammonium: NH4+ hypochlorite: CLO Chlorite: CLO2 Chlorate: CLO3 Perchlorate: CLO4 permanganate: MnO4 Sulfate: SO42 Sulfite: SO32 Hydrogegen sulfite: HSO3 (or bisulfite) Hydrogen sulfate: HSO4 peroxide: O22 cyanide: CN ...
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## This note was uploaded on 07/02/2008 for the course 004 007 taught by Professor Haverhals during the Summer '08 term at University of Iowa.

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