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Unformatted text preview: power) is called first-order or unimolecular . The symbol is S N 1 . Solution This reaction proceeds by the S N 1 mechanism so the rate expression does not include the concentration of the nucleophile. Rate = k[t-BuCl] = (0.0105 s-1 ) (0.25 M ) = 0.0025 Mol L-1 s-1 An Example tert-Butyl chloride reacts with sodium hydroxide in a solvent of 80% ethanol-20% water at 55 o C with k = 0.0105 s-1 . What is the rate of the reaction when [t-BuCl] = 0.25 M and [HO-] = 1.0 M ?...
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