C102Midterm2B2010.key

C102Midterm2B2010.key - NAME _ Student No. _ SECTION...

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NAME _______________________________________ Student No . ___________________________ SECTION (circle one ): A01 (Briggs, 8:30 am) A02(Codding) A03 (Briggs, 9:30 am) Version B UNIVERSITY OF VICTORIA CHEMISTRY 102 Mid-Term Test 2, March 12, 2010 Version B This test has two parts: PART I is a multiple choice section and is worth 26 marks. The answers for the 14 questions in this part must be coded on the optical sense form using a SOFT PENCIL . PART II consists of written answers and is worth 24 marks. Answer these questions on this examination paper. Answers written partially or completely in pencil cannot be re-marked. Hand in this entire test paper AND your optical sense form (bubble sheet) at the end of the examination period (60 minutes). The basic Sharp EL510 calculator is the only one approved for use in Chemistry 102. A Data Sheet accompanies this test. Marks for Written Answers Multiple Choice (/26) Raw Score (/50) TOTAL MARK (%) Question 1 [3] Question 2 [5] Question 3 [3] Question 4 [4] Question 5 [3] Question 6 [6] TOTAL (/24)
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Chemistry 102, Mid-Term Test 2 Version B Page 2 of 9 PART I – Multiple Choice: Select the BEST response for each question below . [Total marks = 26] 1. This is exam Version B. Mark “B” as the answer to question 1 on the optical sense form. 2. The standard enthalpy of formation of NiSO 4 (s) at 25 °C is - 872.9 kJ/mole. The chemical equation to which this value applies is: A) Ni(s) + S(s) + 4 O(g) NiSO 4 (s) B) ½ Ni(s) + ½ S(s) + ½ O 2 (g) ½ NiSO 4 (s) C) ½ Ni(s) + ½ S(s) + O 2 (g) ½ NiSO 4 (s) D) NiSO 4 (s) Ni(s) + S(s) + 4 O(g). E) Ni(s) + S(s) + 2 O 2 (g) NiSO 4 (s) 3. Calculate Δ H° (in kJ) for this reaction: C 6 H 4 (OH) 2 (l) + H 2 O 2 (g) C 6 H 4 O 2 (l) + 2 H 2 O(l) Use the information on the Data Sheet and C 6 H 4 (OH) 2 (l) C 6 H 4 O 2 (l) + H 2 (g) +177.4 kJ A. -170.1 B. -258.2 C. -384.2 D. +27.7 E. 71.7 4. Given the reactions below, compute Δ H° (in kJ) for the reaction: H 2 (g) + S(rhombic) H 2 S(g) Reaction Δ H ° rxn (kJ) H 2 S(g) + 3 / 2 O 2 (g) H 2 O(l) + SO 2 (g) - 562.3 S(rhombic) + O 2 (g) SO 2 (g) - 297.0 H 2 (g) + ½ O 2 (g) H 2 O(l) - 166.9 A. +1026.2 B. - 1026.2 kJ C. + 98.4 D. 562.3 E. - 69.1 kJ 5. Under which of the following conditions will vaporization best occur? A) high molecular mass, large surface area, high kinetic energy B) high molecular energy, small surface area C) low kinetic energy, strong intermolecular forces, large surface area D) weak forces between molecules, high kinetic energy, large surface area E) small surface area, low kinetic energy, low molecular mass
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Chemistry 102, Mid-Term Test 2 Version B Page 3 of 9 6. When a liquid is in dynamic equilibrium with its vapor in a closed container at a given temperature, indicate ALL of the following conditions that ARE TRUE : I) There is no transfer of molecules between liquid and vapor II) The vapor pressure has a unique value III) The opposing processes, (liquid to vapor) and (vapor to liquid), proceed at equal rates
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This note was uploaded on 01/15/2011 for the course CHEM 102 taught by Professor Briggs during the Spring '08 term at University of Victoria.

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C102Midterm2B2010.key - NAME _ Student No. _ SECTION...

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