Mock Final Exam S2008

Mock Final Exam S2008 - Final Exam Review Sample Questions...

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Final Exam Review Sample Questions By: Rima Patel Spring 2008 Electron Configurations and Quantum Numbers: 1. What is the electron configuration for the ground state 24 Cr? a. [Ar] 4s 2 4d 4 b.[Ar] 4s 2 3d 4 c. [Ar] 4s 1 3d 5 d.[Ar] 4s 1 4d 5 2. An atom has a valence shell electron configuration of ns 2 , which group of elements does it belong to? a. Alkaline earth metals b.Transition metals c. Halogens d.Alkali metals 3. The electronic configuration of 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 4 refers to the ground state of a. Zn b.Ga - c. Ge - d.Br + e. Kr 4. Which electron configuration is impossible? a. 1s 2 2s 2 2p 6 3s 2 b.1s 2 2s 2 2p 6 3s 2 3p 6 c. 1s 2 2s 2 2p 3 2d 2 d.1s 2 2s 2 2p 5 3s 1 e. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 3d 5 5. Which one of these quantum number sets is not possible? a. n=4, l =3, m l =0 b.n=4, l =3, m l =-2 c. n=3, l =2, m l =0 d.n=2, l =1, m l =-2 e. n=2, l =0, m l =0 6. Which of the following set of quantum numbers is not possible? a. n=1, l =0 m l =0 b. n=4, l =3 m l =-2 c. n=3, l =2 m l =0
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d. n=2, l =0 m l =0 e. n=2, l =1 m l =-2 Formulas, Nomenclature, Isotopes, and Oxidation Numbers: 7. All of the following formulas are correct EXCEPT a. Ba(NO 3 ) 2 b.KClO 4 c. Na 3 N d.Al 2 (SO 4 ) 3 e. Ca 2 HPO 4 8. The formula of the compound ammonium phosphate is a. NH 4 (PO 4 ) 3 b.NH 4 (PO 4 ) 2 c. (NH 4 ) 2 PO 3 d.(NH 4 ) 2 PO 4 e. (NH 4 ) 3 PO 4 9. Which statement concerning NaCl is true? a. NaCl has properties similar to sodium metal and chlorine gas. b.NaCl is a homogenous mixture. c. NaCl is a heterogeneous mixture. d.The percentage of Na in NaCl is dependent on where the sample is obtained. e. NaCl is composed of ions, which are electrically charged atoms. 10. Cu 2+ is properly named a. Copper (II) or cupris b.Copper (III) or cuprous c. Copper (III) or cupris d.Copper (II) or cuprous e. None of the above 11. The element boron consists of two isotopes, 10 5 B and 11 5 B. Their masses, based on the carbon scale, are 10.01 and 11.01, respectively. The abundance of 10 5 B is 20.0% and the abundance of 11 5 B is 80.0%. What is the atomic mass of boron? a. 10.30 g/mol b.11.00 g/mol c. 8.81 g/mol d.10.81 g/mol 12. Find the empirical formula for the oxide that contains 42.05 g of nitrogen and 95.95 g of oxygen. a. NO b.N 2 O
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c. NO 2 d.NO 3 13. The empirical formula of peroxodisulfuric acid is HSO 4 . If the molar mass is 194.2 g/mol then the molecular formula must be: a. H 3 S 3 O 12 b.H 2 S 2 O 6 c. H 2 S 2 O 8 d.H 2 SO 8 14. The empirical formula of a compound is CH 2 . Which molecular formula is correctly paired with a structural formula for this compound? 15. Give the oxidation number of chlorine in the compound Ti(ClO
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This note was uploaded on 06/12/2008 for the course CHEM 151 taught by Professor Staff during the Spring '08 term at Arizona.

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Mock Final Exam S2008 - Final Exam Review Sample Questions...

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