Homework 2 - Homework 2 questions 1. Which of the following...

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1 Homework 2 questions 1. Which of the following is a standard enthalpy of formation reaction? I. C(graph) + O 2 CO 2 (g) II. H 2 (g) + ½ O 2 H 2 O ( ) III. CH 3 OH ( ) + 3/2 O 2 (g) CO 2 (g) + 2 H 2 O ( ) A. I only B. I and II C. II and III D. All E. None 2. If 325 g of water at 4.20 ° C absorbs 12.28 kJ, what is the final temperature of the water? The specific heat of water is 4.18 J/g·K. A. 4.21 ° C B. 4.8 ° C C. 9.0 ° C D. 13.2 ° C E. 2938 ° C 3. Magnesium is burned in a bomb calorimeter. If 3.28 kJ of energy were released by the combustion of magnesium and if the enthalpy of combustion for magnesium is 602 kJ/mol, how many grams of magnesium were burned Mg (s) + ½ O 2 (g) MgO(s) A. 24.3 g B. 2.43 g C. 1.06 g D. 0.132 g E. 0.0264 g
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2 4. If the standard state of sulfur is S 8 (s), which of the following equations represents the standard enthalpy of formation of H 2 SO 4 ( ) ? A. 2H (g) + S (g) + 4 O (g) H 2 SO 4 ( ) B. H 2 (g) + S 8 (g) + 2 O 2 (g) H 2 SO 4 ( ) C. H 2 SO
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This note was uploaded on 09/28/2010 for the course CHE 210 taught by Professor Dr.elbehlil during the Spring '10 term at Kansas State University.

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Homework 2 - Homework 2 questions 1. Which of the following...

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