Explanation Given The solubility product for Zn ( OH ) 2 is 3.0 × 10 − 16 . The formation constant for hydro complex, Zn ( OH ) 4 2 − is 4.6 × 10 17 The dissolution of Zn ( OH ) 2 is given as, Zn ( OH ) 2 ( s ) ⇌ Zn 2 + ( a q ) + 2 OH − ( a q ) The formation of Zn ( OH ) 4 2 − is given by the reaction, Zn 2 + ( a q ) + 4 OH − ( a q ) → Zn ( OH ) 4 2 − ( a q ) The reaction between OH − and Zn ( OH ) 2 is given by adding the above two equations and the resultant reaction is, Zn ( OH ) 2 ( s ) + 2 OH − ( a q ) ⇌ Zn ( OH ) 4 2 − ( a q ) The equilibrium constant for the above reaction is calculated by the formula, K = K s p × K f Where, K is the equilibrium constant for the above reaction. K s p is solubility product constant for Zn ( OH ) 2

Laboratory Experiments For Chemistry: The Central Science, Si Edition

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ISBN: 9781292221335

Author: Theodore E. Brown

Publisher: PEARSON

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Chapter 17, Problem 108AE

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To determine: The concentration of OH− required to dissolve 0.015 mol of Zn(OH)2 in a liter of solution.

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Chapter 17, Problem 107AE

Chapter 17, Problem 109AE

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The SN 1 mechanism starts with the rate-determining step which is the dissociation of the alkyl halide into a carbocation and a halide ion. The next step is the rapid reaction of the carbocation intermediate with the nucleophile; this step completes the nucleophilic substitution stage. The step that follows the nucleophilic substitution is a fast acid-base reaction. The nucleophile now acts as a base to remove the proton from the oxonium ion from the previous step, to give the observed product. Draw a curved arrow mechanism for the reaction, adding steps as necessary. Be sure to include all nonzero formal charges. Cl: Add/Remove step G Click and drag to start drawing a structure.

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Laboratory Experiments For Chemistry: The Central Science, Si Edition

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The concentration of OH − required to dissolve 0.015 mol of Zn ( OH ) 2 in a liter of solution.

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To determine: The concentration of OH− required to dissolve 0.015 mol of Zn(OH)2 in a liter of solution.

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Chapter 17 Solutions