(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: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter2: Atoms, Molecules, And Ions
Section: Chapter Questions
Problem 90QAP: Calculate the average density of a single Al-27 atom by assuming that it is a sphere with a radius...
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general chemistry , please solve question 10 and 11
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