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# Review_2.pdf

4 Pages
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School
University of Missouri - Columbia
Department
Biological Sciences
Course
BIO_SC 1500
Professor
Maruniak
Semester
Spring

Description
1. What is the maximum number of electrons in an atom that can have the following set of quantum numbers? n = 4 l = 3 m = –2lm = +1/2 s A) 0 B) 1 C) 2 D) 6 E) 10 2. The ground-state electron configuration for an atom of indium is 2 6 5 2 6 5 A) [Kr]5s 2p 10 1 D) [Kr]5s 2p 10 1 B) [Ar]4s 3d 4p E) [Kr]5s 4d 5p C) [Ar]4s 4p 3d 5 3. Calculate the amount of heat necessary to raise the temperature of 135.0 g of water from 50.4°F to 85.0°F. The specific heat of water = 4.184 J/g·°C. A) 1.1 kJ B) 10.9 kJ C) 16.6 kJ D) 19.5 kJ E) 48.0 kJ 4. Three separate 3.5g blocks of Al, Cu, and Fe at 25 °C each absorb 0.505 kJ of heat. Which block reaches the highest temperature? The specific heats of Al, Cu, and Fe are 0.900 J/g·°C, 0.385J/g·°C, and 0.444 J/g·°C, respectively. A) Al B) Cu C) Fe D) Al and Cu E) Fe and Cu 5. The reaction that represents the standard enthalpy of formation for acetone (CH COCH ), 3 3 a common ingredient in nail polish remover is: A) 3 C(graphite) + 3 H (g2 + ½ O (g) 2 CH COCH (l)3 3 B) 6 C(diamond) + 6 H (g)2+ O (g) 22 CH COCH (l) 3 3 C) 3 C(diamond) + 3 H (g)2+ ½ O (g)  2H COCH (l) 3 3 D) CH 3OCH (l)3 3 C(graphite) + 3 H (g) + 2 O (g) 2 E) CH 3OCH (l)3+ 4 O (g) 23 CO (g) + 3 2 O(g) 2 6. A 0.271 g sample of an unknown vapor occupies 294 mL at 140.°C and 847 mmHg. The empirical formula of the compound is CH . Wh2t is the molecular formula of the compound? A) CH B) C H C) C H D) C H E) C H 2 2 4 3 6 4 8 6 12 7. A sample of oxygen gas has a volume of 545 mL at 35°C. The gas is heated to 151ºC at constant pressure in a container that can contract or expand. What is the final volume of the oxygen gas? A) 750. mL B) 396 mL C) 417 mL D) 267 mL E) 126 mL 8. Calculate the density, in g/L, of2N gas at 35°C and 0.98 atm pressure. A) 0.039 g/L B) 0.34 g/L C) 0.54 g/L D) 1.1 g/L E) 9.6 g/L 9. A mixture of three gases has a total pressure of 1,380 mmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO 2 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar? A) 0.258 atm D) 5,345 mmHg B) 301 mmHg E) 8,020 mmHg C) 356 mmHg 10. What will happen to the height (h) of the column of mercury in the manometer shown below if the stopcock is opened? A) h will decrease B) h will not change C) h will increase D) not enough infor
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