Chem 2 MIDTERM 2 Form B KEY

Chem 2 MIDTERM 2 Form B KEY - Midterm 2 Exam Form B, CHEM...

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Midterm 2 Exam Form B, CHEM 002 Spring, 2009. (Chapters 8, 9, 10, 12, 13 and 14) Name: _________________________ Date: ____________ Please note that you may need to balance the chemical equations given in the question(s) below before attempting to answer the question(s). 1) What is the change of enthalpy, H, for the reaction given below carried out at 25 ° C? 2 SO 2 (g) + O 2 (g) 2 SO 3 (g) Selected    G f ° and S °   values . Molecular Species SO 2 (g) O 2 (g) SO 3 (g) G f ° (KJ/mol) -300. 0.0 -371 S ° (J/K mol) 248 205 257 a) -198 KJ b) -55.9 KJ c) 55900 KJ d) -12.6 KJ e) -142 KJ 2) Which atom will be attracted most strongly to a magnetic field (i.e. greatest magnetism)? a) Li b) Ne c) N d) S e) B 3) Which of the following electron configurations represents Al +3 in its lowest excited state? a) 1s 2 , 2s 2 , 2p 6 , 3s 2 ,3p 1 b) 1s 2 , 2s 2 , 2p 5 , 3p 1 c) 1s 2 , 2s 2 , 2p 4 , 3s 2 d) 1s 2 , 2s 2 , 2p 6 e) 1s 2 , 2s 2 , 2p 5 , 3s 1 Page 1 of 3
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Midterm 2 Exam Form B, CHEM 002 Spring, 2009. (Chapters 8, 9, 10, 12, 13 and 14)
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Chem 2 MIDTERM 2 Form B KEY - Midterm 2 Exam Form B, CHEM...

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