Solution_to_Midterm_I_Spring_2006

Solution_to_Midterm_I_Spring_2006 - 3. Give the steric...

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University of Southern California MASC 110L Midterm I E. Goo February 17, 2006 Answer all questions. All questions are of equal value. 1. Draw the electron dot notation for the following molecules a) BF 3 b) CO 2 c) SiH 4 d) SO 4 2- e) NO 3 -
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2. Naturally occurring rubidium(Rb) consists of two isotopes: Rb 85 (atomic mass 84.9117) and Rb 87 (atomic mass 86.9092). The atomic mass of the isotope mixture found in nature is 85.4678. Calculate the percent abundance of the two isotopes in rubidium.
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Unformatted text preview: 3. Give the steric number of the central atom and determine the shape of the following molecules. Draw the molecule and give the name of the molecule shape. The first atom in the formula is the central atom. a) AsF 3 b) XeF 2 c) XeF 4 d) CS 2 e) SeF 6 4. 5.86 grams of a gas at 100 o C and one atmosphere of pressure has a volume to 5.6 liters. Identify the gas....
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This note was uploaded on 02/28/2008 for the course MASC 110L taught by Professor Goo during the Fall '07 term at USC.

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Solution_to_Midterm_I_Spring_2006 - 3. Give the steric...

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