Chem%20161-2008%20final%20exam%20without%20answers

Chem%20161-2008%20final%20exam%20without%20answers - Chem...

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1 Chem 161-2008 Final exam Hill, Petrucci et al. Chapter 5 - Gases Kinetic molecular theory/Effusion and Diffusion/Real gases 1. Which of the following is inconsistent with the Kinetic-Molecular Model of gases? A. Gases consist of tiny particles in constant, random motion. B. The average kinetic energy of the particles of a gas is directly proportional to the temperature. C. Attractive and repulsive forces between gas particles are strong and must be included in the calculation of pressure. D. Collisions between particles or between gas particles and the walls results in no loss of kinetic energy. E. The volume of gas particles is insignificant in comparison to the volume of the container. Chem 161-2008 Final exam Hill, Petrucci et al. Chapter 2 - Atoms, Molecules, and Ions Nature of the atom (protons, neutrons, electons, symbols, isotopes, etc.) 2. How many protons, electrons and neutrons are in the 47 Ti 2+ ion? protons electrons neutrons A 22 22 23 B 20 22 25 C 22 20 25 D 22 24 25 E 25 20 22 Chem 161-2008 Final exam Hill, Petrucci et al. Chapter 3 – Stoichiometry: Chemical Calculations Reaction stoichiometry 3. A 1.80 g sample of barium chloride hydrate, BaCl 2 •xH 2 O is treated with excess sulfuric acid, forming a BaSO 4 precipitate which has a mass of 1.72g. Calculate the value of x. A. 1 B. 2 C. 3 D. 5 E. 7 Chem 161-2008 Final exam Hill, Petrucci et al. Chapter 10 – Bonding theory and Molecular Structure (VSEPR) Hybrid orbitals (hybridization), sigma and pi bonds
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2 4. Which atomic orbitals overlap to form the S-Br sigma bond in SOBr 2 (S is the central atom)? A. 3p of S and 4p of Br B. sp 3 d of S and 4p of Br C. 3p of S and sp 3 of Br D. sp 2 of S and 4p of Br E. sp 3 of S and 4p of Br Chem 161-2008 Final exam Hill, Petrucci et al. Chapter 10 – Bonding theory and Molecular Structure (VSEPR) Molecular structure, angles, and polarity (VSEPR) 5. Which of the following molecules are polar? X. 1,2-dichlorobenzene Y. 1,3-dichlorobenzene Z. 1,4-dichlorobenzene A. Y and Z only B. Z only C. X and Y only D. X and Z only E. X, Y, and Z Chem 161-2008 Final exam Hill, Petrucci et al. Chapter 7 – Light and Atomic Structure Light and matter 6. What is the wavelength associated with a particle which travels at a speed of 165 m/s has a mass of 5.67 x 10 -27 kg? A. 0.912 nm B. 1.51 nm C. 0.708 nm D. 2.13 nm E. 5.25 nm Chem 161-2008 Final exam Hill, Petrucci et al. Chapter 8 - Electronic Configurations, Atomic Properties, and Periodic Table Trends Periodic table and periodic trends (atomic and ionic radius, ionization energy, electron affinity, etc.) 7. The first ionization energy of Al is lower than that of Mg because: A. Al has a higher atomic mass than does Mg. B.
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This note was uploaded on 03/08/2011 for the course CHEM 161 taught by Professor Vacillian during the Fall '08 term at Rutgers.

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Chem%20161-2008%20final%20exam%20without%20answers - Chem...

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