Practice%20Exam%201A - Practice Exam 1A 1 Iron...

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1 Practice Exam 1A 1) Iron pentacarbonyl (Fe(CO) 5 ) reacts with phosphorous trifluoride (PF 3 ) and hydrogen, releasing carbon monoxide: Fe(CO) 5 + 2PF 3 + H 2 Æ Fe(CO) 2 (PF 3 ) 2 (H) 2 + 3CO The reaction of 5.0 mol of Fe(CO) 5 , 8.0 mol of PF 3 and 6.0 mol of H 2 will release __________ mol of CO. A) 15 B) 5.0 C) 24 D) 6.0 E) 12 2) If you pour 300 mL of 0.10 M KOH into a beaker that contains 100 mL of 0.20 M HCl, the resulting solution will be A) 0.20 M with respect to KCl B) 0.10 M with respect to KCl C) 0.01 M with respect to HCl D) 0.04 M with respect to KOH E) 0.025 M with respect to KOH 3) Which species below is the nitride ion? A) Na + B) NO 3- C) NO 2- D) NH 4+ E) N 3- 4) Which of the following are strong electrolytes? a) HCl b) HC 2 H 3 O 2 c) NH 3 d) KCl A) a, d B) a, c, d C) a, b, c, d D) a, b, d E) b, d 5. Bromine is the only nonmetal that is a liquid at room temperature. Consider the isotope bromine-81. Select the combination which lists the correct atomic number, number of neutrons, and mass number, respectively. A) 35, 46, 81 B) 35, 81, 46 C) 81, 46, 35 D) 46, 81, 35 E) 46, 35, 81
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2 6) Vanadium has two naturally occurring isotopes, 50 V with an atomic mass of 49.9472 amu and 51 V with an atomic mass of 50.9440. The atomic weight of vanadium is 50.9415. The percent abundances of the vanadium isotopes are __________% 50 V and __________% 51 V. A) 0.2500, 99.750 B) 99.750, 0.2500 C) 49.00, 51.00 D) 1.000, 99.000 E) 99.000, 1.000 7) In which species does sulfur have the highest oxidation number? A) S 8 (elemental form of sulfur) B) H 2 S C) SO 2 D) H 2 SO 3 E) K 2 SO 4 8) In the following reaction, what is oxidized? Zn(s) + CuSO
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This note was uploaded on 04/07/2010 for the course CHEMISTRY chem 130 taught by Professor Mr during the Spring '10 term at University of Michigan.

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Practice%20Exam%201A - Practice Exam 1A 1 Iron...

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