1. Say true or false and provide the chemical basis for your answer. (a) The spe

Question

1. Say true or false and provide the chemical basis for your answer. (a) The specific rotation of a compound is independent of any other parameters. (b) The concentration of a liquid sample is substituted for by density, in general.

2. A solution of an unknown compound (3.0 g of the compound in 20.0 mL of solution), when placed in a polarimeter tube 2.0 dm long, was found to rotate the plane of polarized light 1.8o less than the water sample. What is the specific rotation of the compound?

3. The correct units for specific rotation are deg cm2 g-1 , although the unit is usually just given as degrees. Can you show how the unit of specific rotation is deg cm2 g-1 ?

Questions 1. Say true or false and provide the chemical basis for your answer. (a) The specific rotation of a compound is independent of any other parameters. (b) The concentration of a liquid sample is substituted for by density, in general. 2. A solution of an unknown compound (3.0 g of the compound in 20.0 mL of solution), when placed in a polarimeter tube 2.0 dm long, was found to rotate the plane of polarized light 1.80 less than the water sample. What is the specific rotation of the compound? 3. The correct units for specific rotation are deg cm2 g 1, although the unit is usually just given as Can you show how the unit of rotation is g 4. Acarbon atom is said to be stereogenic if it is bonded to four different groups. Identify the stereogenic carbons in the following compound. Mark the stereogenic carbon(s) with an

Explanation / Answer

a) False. Rotation of a molecule depend of on the groups, the type of bonds and the steric impediment.

b) True. It could be same to the density only if the solution is in ambient temperature and pression.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.