Quiz 5 - 12 22 11 2 Molecular Weights (g/mol): C H O...

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Chem. 212 - Quiz #5 WINONA STATE UNIVERSITY Dec. 1, 2006 (01/02/03) Dr. Ng Name ____________________________________ Signature ______________________________Box #______ P R I N T ( L A S T , F I R S T ) Follow rules of sig. figs. Show your work for full credits. Box final answer(s) with appropriate unit(s). A 31.1 weight percent solution of sucrose in water has a density of 1.32 g mL . By considering sucrose as the -1 solute (S) and water as the solvent (A), calculate the following parts.
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Unformatted text preview: 12 22 11 2 Molecular Weights (g/mol): C H O (sucrose) = 342.30 H O = 18.015 (A) Number of grams of sucrose for a 113.2 gram solution. [2] (B) Mole Fraction of sucrose for the 31.1 weight percent sucrose solution. [Use exactly 100 g total solution in your calculations.] [4] (C) Molarity ( units of mol L ) of sucrose for the 31.1 weight percent sucrose solution.-1 [Use exactly 100 g total solution in your calculations.] [4]...
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This note was uploaded on 04/26/2008 for the course CHEM 212 taught by Professor Ng during the Fall '07 term at Winona.

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