Web Quiz 4

Web Quiz 4 - http:/chemmac1.usc.edu/cgi-bin/randquiz.cgi...

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http://chemmac1.usc.edu/cgi-bin/randquiz.cgi 1 of 4 Web Quiz You can login to this page multiple times but you cannot take the quiz more than once. . Submit your answer for grading by Clicking on the "Grade Answers" button at the bottom of the page only when you are sure of your answers. Question # 1 A sample of solid NH 4 NO 3 was placed in an evacuated container and then heated so that it decomposed explosively according to the following equation: NH 4 NO 3 ( s ) N 2 O( g ) + 2H 2 O( g ) At equilibrium the total pressure in the container was found to be 3.20 atm at a temperature of 500°C. Calculate K p . A. 4.10 atm 3 B. 1.23 atm 3 C. 2.56 atm 2 D. 4.85 atm 3 E. 1.14 atm 2 Question # 2 Consider the following reaction: 2HF( g ) H 2 ( g ) + F 2 ( g ) ( K = 1.00 x 10 -2 ) Given 1.00 mole of HF( g ), 0.500 mole of H 2 ( g ), and 0.750 mole of F 2 ( g ) are mixed in a 5.00-L flask, determine the reaction quotient, Q , and the net direction to achieve equilibrium. A.
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Web Quiz 4 - http:/chemmac1.usc.edu/cgi-bin/randquiz.cgi...

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