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Unformatted text preview: Name: _______________________________________________ EDP#: 403410 General Chemistry I ‐ X19B ‐ Spring 2012 – Homework #1 – Due January 30, 2012 1. 249g of ice at 265K is mixed with 101g of water at 304K. Calculate the final temperature of the mixture. Assume that no energy in the form of heat is transferred to the environment. (Heat of fusion = 333 J/g; cice = 2.06 J/g∙K, cwater = 4.184 J/g∙K) (8pts) 2. Please list the major intermolecular forces present in a system containing just these molecules? (4pts total) a.) C2H2 b.) H2O c.) NaF e.) NO2 3. What is the molality of a 12.0M HCl solution with a density of 1.22 g/mL. (4pts) 4. A compound is known to be a potassium halide. If 4.00g of the salt dissolves in exactly 100g of water, the solution freezes at ‐1.28°C. Identify the halide ion in this problem. (4pts) Page 1 of 1 ...
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This note was uploaded on 02/09/2012 for the course CHEMISTRY 101 taught by Professor Endy during the Spring '11 term at Harvard.

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