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18 Nov 2019
For calculations use C 12.011 H 1.007 O-15.999 H3PO4 Cyclohexene Cyclohexanol bp 161 oc, mp 25 OC bp 83 OC M. W. 82.14 M.W. 100.16 density 0.81 g/mL density 0.96 g/mL A mixture of 5.7 ml of Cyclohexanol and 1.6mL of 85% phosphoric acid with a magnetic stir bar was placed in a 25mil round bottomed flask. The mixture was distilled to obtain a 3.7ml of distillate, cyclohexene. Show all steps of the calculations to receive full credit: (i) Calculate the theoretical yield. (5pts) (ii) Calculate the yield for your product. (5pts) iii) Draw the full mechanism (10pts) Is it an SN1, SN2, E1 or an E2 mechanism? What is the byproduct of this reaction? (5pts) iv Explain why the cyclohexanol has a very high BP (161 whereas the product Cyclohexene has a significantly lower BP (83 oC) (5pts) (v) How many milliliters of cyclohexanol would be required ifyou needed 50g of it for the reaction? (5pts) (vi) How many milliliters of cyclohexanol would be needed if you wanted 10g of cyclohexene. (5 pts) (vi) What will happen after adding Br solution if an alkene is present? Give an example including a mechanism and color changes. Extra Credit (5 pts) 2. What do the following abbreviations stand for? (1pt each answer 10) (i MP, ii BP, (iii) MW, (iv) E1, (v) E2, (vi) RDS, (vii) f, viii) mg, (ix) IR (x) TLC, (xi)ml
For calculations use C 12.011 H 1.007 O-15.999 H3PO4 Cyclohexene Cyclohexanol bp 161 oc, mp 25 OC bp 83 OC M. W. 82.14 M.W. 100.16 density 0.81 g/mL density 0.96 g/mL A mixture of 5.7 ml of Cyclohexanol and 1.6mL of 85% phosphoric acid with a magnetic stir bar was placed in a 25mil round bottomed flask. The mixture was distilled to obtain a 3.7ml of distillate, cyclohexene. Show all steps of the calculations to receive full credit: (i) Calculate the theoretical yield. (5pts) (ii) Calculate the yield for your product. (5pts) iii) Draw the full mechanism (10pts) Is it an SN1, SN2, E1 or an E2 mechanism? What is the byproduct of this reaction? (5pts) iv Explain why the cyclohexanol has a very high BP (161 whereas the product Cyclohexene has a significantly lower BP (83 oC) (5pts) (v) How many milliliters of cyclohexanol would be required ifyou needed 50g of it for the reaction? (5pts) (vi) How many milliliters of cyclohexanol would be needed if you wanted 10g of cyclohexene. (5 pts) (vi) What will happen after adding Br solution if an alkene is present? Give an example including a mechanism and color changes. Extra Credit (5 pts) 2. What do the following abbreviations stand for? (1pt each answer 10) (i MP, ii BP, (iii) MW, (iv) E1, (v) E2, (vi) RDS, (vii) f, viii) mg, (ix) IR (x) TLC, (xi)ml
Deanna HettingerLv2
23 Aug 2019