1372 review 3A - 1 General Chemistry 4th edition Hill...

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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 1
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 2 How many moles of oxygen are needed to completely combust 4.50 moles of butane, C 4 H 10 ? a. 4.50 b. 58.5 c. 29.3 d. 0.69 e. 6.50
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 3 Combustion analysis of 9.564 g of C 4 H 10 will yield _______ g of CO 2 . a. 0.1646 b. 28.97 c. 3.739x10 -3 d. 7.242
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 4 The reaction 2 O 3 (g) → 3 O 2 (g) is second order in O 3 , and the order with respect to O 2 is found to be −1. The rate constant is 2.6 × 10 4 s −1 at a certain temperature. What is the rate of the reaction if [O 3 ] = 1.1 × 10 −3 M and [O 2 ] = 3.4 × 10 −2 M? a. 0.97 b. 0.93 c. 840 d. 1.1 × 10 −3 e. 2.6 × 10 4
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 5
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 6 The equilibrium system PCl 5 (g) PCl 3 (g) + Cl 2 (g) is disturbed by adding chlorine. When equilibrium is reestablished, what can be predicted about the new concentration compared to the original equilibrium concentration? . [PCl 5 ] is larger, [PCl 3 ] larger, [Cl 2 ] larger b. [PCl 5 ] is smaller, [PCl 3 ] larger, [Cl 2 ] larger c. [PCl 5 ] is larger, [PCl 3 ] larger, [Cl 2 ] smaller d. [PCl 5 ] is larger, [PCl 3 ] smaller, [Cl 2 ] larger e. [PCl 5 ] is larger, [PCl 3 ] smaller, [Cl 2 ] smaller
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 7 For the system CaO (s) + CO 2 (g) CaCO 3 (s), the equilibrium constant expression is a. [CaCO 3 ] / [CaO] [CO] b. 1/ [CaO] [CO] c. [CO 2 ] d. CaO [CO 2 ] / [CaCO 3 ] e. 1/ [CO 2 ]
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 8 Consider the following 2-step mechanism. Which of the species in the mechanism is the catalyst? H 2 O 2 + I → H 2 O+ OI fast step H 2 O 2 + OI → H 2 O+ O 2 + I slow step ---------------------------------------- 2 H 2 O 2 → 2 H 2 O+ O 2 net reaction a. H 2 O 2 b. H 2 O c. I d. OI e. O 2
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 9 In a 1.0 L vessel, at 298 K, 0.761 M A (g) and 0.916 M B (g) react to form 0.503 M C (g). What is the value of the equilibrium constant for this reaction at 298K? A (g) + B (g) ↔ C (g) a. 0.722 b. 0.00242 c. 0.212 d. 4.72 e. 1.24
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4 th edition, Hill, Petrucci, McCreary, Perry 10 VSEPR Notation and Strategy In the VSEPR notation used to describe molecular geometries, the central atom in a structure is denoted as A , terminal atoms as X , and the lone pairs of electrons as E . Applying the VSEPR method: 1. Draw a Lewis structure of the molecule or ion; 2. Determine the number of electron groups; 3. Identify the electron-group geometry; 4. Identify the molecular geometry. Review
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1372 review 3A - 1 General Chemistry 4th edition Hill...

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