Final - Equations: o K = o C + 273.15 o F = 1.8 ( o C) + 32...

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Unformatted text preview: Equations: o K = o C + 273.15 o F = 1.8 ( o C) + 32 q = m q c q T = m q c q (T f T i ) E = hq c = Palmer-Rydberg Equation: ) ( 2 2 2 1 n 1 n 1 R 1- = Energy Equation from Bohr model of H: E = (-2.18 x 10-18 J) (1/n 2 ) E = E final- E initial Constants: Plank constant: 6.626 x 10-34 Jqs Speed of light (c): 3.00 x 10 8 m/s Rydberg constant: R = 1.097 x 10 7 m-1 Specific heat capacity of water: 1.00 cal cal/g K = 4.184 J/ g K Density of water: 1.00 g/mL Universal gas constant: 0.08206 atm L/mol K = 8.314 J/mol K Conversions: 1 atm = 760 torr (exact) = 760 mm Hg (exact) = 101.325 kPa Solubility Rules: Soluble ionic compounds (salts) o Always soluble: any compounds containing: Group IA cations, NH 4 + , or ClO 4 , NO 3 , C 2 H 3 O 2 anions o Anions that are usually soluble Compounds containing Cl, Br, or I are soluble unless they bond with Ag + , Pb 2+ , Cu + or Hg 2 2+ ; Compounds containing SO 4 2- are soluble unless it bonds with Ag + , Pb 2+ , Hg 2 2+ , Ca 2+ , Sr 2+ , or Ba 2+ ; Compounds containing F are soluble unless they bond with Pb 2+ , Mg 2+ Ca 2+ , Sr 2+ , or Ba 2+ ; Insoluble ionic compounds (salts) o Anions that are usually insoluble Compounds containing CO 3 2- , PO 4 3- are insoluble unless they bond with group IA ions or NH 4 + ; Compounds containing S 2- are insoluble unless it bonds with group IA ions, NH 4 + or Ca 2+ ; Compounds containing OH are insoluble it bonds with group IA ions, NH 4 + , Ca 2+ , Sr 2+ , or Ba 2+ . The space below is designated for scratching purpose. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1. A substance melts at 508 K. What is the melting point in Fahrenheit? A. 455 F B. 416 F C. 113 F D. 508 F E. 1438 F 2. How many nanometers are in exact 1 centimeter? A. 10 2 B. 10 9 C. 10-7 D. 10 7 E. 10-9 3. What is the molar mass of white streptocide, C 6 H 4 SO 2 (NH 2 ) 2 ? A. 100.2 g/mol B. 140.2 g/mol C. 156.2 g/mol D. 172.2 g/mol E. 344.4 g/mol 4. When the following equation of the reaction is balanced, the coefficient for O 2 is: FeS 2 + O 2 Fe 2 O 3 + SO 2 A. 2 B. 4 C. 6 D. 8 E. 11 5. How many molecules of carbon dioxide are in 99.0 g of this compound? A. 1.35 x 10 4 CO 2 molecules B. 6.02 x 10 23 CO 2 molecules C. 1.35 x 10 24 CO 2 molecules D. 2.56 x 10 25 CO 2 molecules E. 5.95 x 10 25 CO 2 molecules 6. How many protons (p), neutrons (n), and electrons (e) are in an atom of 235 U 3+ ?...
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This test prep was uploaded on 04/08/2008 for the course CHEM 1307 taught by Professor Li during the Spring '08 term at Texas Tech.

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Final - Equations: o K = o C + 273.15 o F = 1.8 ( o C) + 32...

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