Perfect date f 13 7

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Unformatted text preview: goes a transition from n = 2 to n = 4. (R = 1.0967 x 107 m-1) (10 pts) Chemistry 101 Exam 2 Name ____Mr. Perfect_________________________________ Date ______F 13_________ 7. A 0.847g sample of an unknown gas is placed in a 1.50 L bulb at a pressure of 356 mmHg and a temperature of 22.5 °C. What is the molar mass of the gas? (10 pts) R = 0.0821 Latm/molK T = 22.5 + 273 = 295.5 K 8. Given the following data: Reverse C2H2 + 2H2 → C2H6 ∆H -94.5 kJ Reverse x 2 H2O → H2 + ½ O2 +71.2 kJ Reverse C2H6 + O2 → 2CO2 + 3H2O -283 kJ Calculate...
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This document was uploaded on 03/19/2014 for the course CHEMISTRY 101 at Los Angeles Harbor College.

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