1. Why was a steam distillation performed rather than a simple distillation performed in the isolation of citral from lemon grass oil?
Simple distillation is used to isolate a pure non-volatile liquid from another non-volatile substance. Steam distillation is used to separate liquid and solid that are somewhat volatile and immiscible in water. Since citral is moderately volatile, it was best to use steam distillation.
7. Both geranial (1) and vitamin A (2) are members of the class of natural products called terpenes. This group of compounds has the common characteristic of being biosynthesized by linkage of the appropriate number of five-carbon units having the skeletal structure shown below. Determine the number of such units present in
Simple distillation is used to isolate a pure non-volatile liquid from another non-volatile substance. Steam distillation is used to separate liquid and solid that are somewhat volatile and immiscible in water. Since citral is moderately volatile, it was best to use steam distillation.
7. Both geranial (1) and vitamin A (2) are members of the class of natural products called terpenes. This group of compounds has the common characteristic of being biosynthesized by linkage of the appropriate number of five-carbon units having the skeletal structure shown below. Determine the number of such units present in