(a) 29.0 (b) 41.2 (c) 58.0 (d) 66.4 87.0 6. Calculate the standard heat of formation, 4H, for FeS2(s), given the following information: 2FES2(s) + 50:(g)→ 2FEO(s) + 4SO:(g)AH°ra = -1370 kJ AH for FeO(s) = -268 kJ/mol %3D 4H for SO:(g) =-297 kJ/mol; %3D (a) -177 kJ (b) -1550 kJ (c) -774 kJ (d) -686 kJ (e) +808 kJ 7. Calculate the change in the internal energy (4U) for the reaction of Ni with CO, if 158 kJ heat was evolved and 8.68 kJ work was done on the system. (a) -158 kJ Ni(s) + 4 CO (g) Ni(CO)«(g) (c) 167 kJ (b) 149 kJ (d) -167 kJ (e) -149 kJ 8. State which of the following sets of quantum numbers would be impossible: (a) n=1, 1=0, m = 0, m,=+1/2 (d) n=2, 1=1, m = 0, m, = -1/2 (b) n=2, 1= 2, m = +2, m,= +1/2 (e) n=2, 1=1, m, = -1, m, = -1/2 (c) n=3, 1=2, m =+2, m, = -1/2 !! %3! %3D %3D %3D 9. Which element has the highest first ionization energy? (a) Be (b) В (c) C (d) N (e) O 10. The atom having the valence-shell configuration 4s² 4p° would be in: (a) Group 6A and Period 5 (d) Group 7A and Period 4 (b) Group 4B and Period 4 (e) Group 7B and Period 4 (c) Group 6B and Period 7 11. Which of the following electron configurations is wrong: (a) Mg (Z= 12): Is2s 2p 3s2 (c) Cu (Z 29): 1s25 2p'3s 3p 3d104s' (e) S (Z = 16): 1s'2s 2p°3s'3p* (b) Br (Z= 35): [Ar] 3d04s²4p (d) V (Z=23): [Ar] 3d° 1
(a) 29.0 (b) 41.2 (c) 58.0 (d) 66.4 87.0 6. Calculate the standard heat of formation, 4H, for FeS2(s), given the following information: 2FES2(s) + 50:(g)→ 2FEO(s) + 4SO:(g)AH°ra = -1370 kJ AH for FeO(s) = -268 kJ/mol %3D 4H for SO:(g) =-297 kJ/mol; %3D (a) -177 kJ (b) -1550 kJ (c) -774 kJ (d) -686 kJ (e) +808 kJ 7. Calculate the change in the internal energy (4U) for the reaction of Ni with CO, if 158 kJ heat was evolved and 8.68 kJ work was done on the system. (a) -158 kJ Ni(s) + 4 CO (g) Ni(CO)«(g) (c) 167 kJ (b) 149 kJ (d) -167 kJ (e) -149 kJ 8. State which of the following sets of quantum numbers would be impossible: (a) n=1, 1=0, m = 0, m,=+1/2 (d) n=2, 1=1, m = 0, m, = -1/2 (b) n=2, 1= 2, m = +2, m,= +1/2 (e) n=2, 1=1, m, = -1, m, = -1/2 (c) n=3, 1=2, m =+2, m, = -1/2 !! %3! %3D %3D %3D 9. Which element has the highest first ionization energy? (a) Be (b) В (c) C (d) N (e) O 10. The atom having the valence-shell configuration 4s² 4p° would be in: (a) Group 6A and Period 5 (d) Group 7A and Period 4 (b) Group 4B and Period 4 (e) Group 7B and Period 4 (c) Group 6B and Period 7 11. Which of the following electron configurations is wrong: (a) Mg (Z= 12): Is2s 2p 3s2 (c) Cu (Z 29): 1s25 2p'3s 3p 3d104s' (e) S (Z = 16): 1s'2s 2p°3s'3p* (b) Br (Z= 35): [Ar] 3d04s²4p (d) V (Z=23): [Ar] 3d° 1
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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general chemistry , please solve question 10 and 11
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