The following questions are for the dehydration of cyclohexanol. (MW = molecular

Question

The following questions are for the dehydration of cyclohexanol. (MW = molecular weight) Starting with 1.60 g of cyclohexanol, what is the theoretical yield of cyclohexene in mol (do not add the units to these answers)? mol What is the theoretical yield in g? g The amount of product obtained after the final distillation is 1.18. Assuming that the distillate is pure cyclohexene, what is the % yield of product? % If gas chromatography of the distillate showed that the purity of product was 0.800, what is the % yield of pure cyclohexene? %

Explanation / Answer

theartical yield = M.Wt of Product x S.M weight/S.M M.Wt

                      = 82.1 x 1.60/100.2

                     = 1.37 gm

theartical yield moles = weight/molecular weight

                               = 1.37/82.1

                               = 0.0166

now % yield = isolated yield x 100/theartical yield

                  = 1.18 x 100/1.37

                  = 86.131%

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