exam3 2000

# exam3 2000 - Chemistry 161SG Exam III Student Name...

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2 FALL “00” 1. A 2.15-g sample of benzene (C 6 H 6 ) is burned in a bomb calorimeter, and the temperature rises from 22.46 ° C to 34.34 ° C. Calculate the heat capacity of the bomb calorimeter. Note the following thermochemical equation: C 6 H 6 (l) + 15/2 O 2 (g) -----> 6CO 2 (g) + 3H 2 O(g) H ° = -3267.5 kJ A. 1.52 x 10 3 kJ ° C - 1 B. 7.58 kJ ° C - 1 C. 90.1 kJ ° C - 1 D. 35.3 kJ ° C - 1 E. 128 kJ ° C - 1 2. If the specific heat of water is 4.18 J g - 1 ° C - 1 , what mass of water can be heated from 5.0 ° C to 80.0 ° C by 27.0 kJ of heat? A. 0.0861 g B. 76.0 g C. 276 g D. 86.1 g E. 8.61 g 3. An AM radio station operates at a frequency of 1080 kHz. What is the wavelength, in meters, of the radio waves? A. 360 m B. 278 m C. 1080 m D. 3.60 m E. 2.78 m 4. Select the atom/ion that has the incorrect configuration listed next to it. A.
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exam3 2000 - Chemistry 161SG Exam III Student Name...

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