Chemistry

I need just the answers to the questions below. No need for extensive explaination. 1. Which of the following hand tools would be classified as "chiral?" Ignore any writing that might normally appear on the tool. a. hand saw b. screw driver c. hammer d. drill bit 2. A meso compound and a racemate are ...continues

Chemistry

I just need the answers, no need for extensive explanations. 1. The possible number of stereoisomers for CH2OH-CHCl-CHBr-CHBr-CH3 is equal to a. 16 b. 8 c. 4 d. 2 2. A solution of sucrose was made by dissolving 1 gm in 10 mL water. The measured rotation at 589 nm (sodium D-line)was +6.65 degrees. T ...continues

Chemistry

Just need the answers no need for extensive explaination. 1. The group with the highest priority using the Cahn-Ingold-Prelog system is a. -CH3 b. -OH c. -CH2OH d. -CHO 2. Which of the following statements is true for cis-1,2-dichlorocylopropane a. This compound is chiral b. The enantiomer is ...continues

Specific Rotation of (-)-epinephrine/ and Calculation of enantiomeric excess

1. A solution of 0.5g (-)-epinephrine dissolved in 10mL of dilute HCl was placed in a 20-cm polarimeter tube. Its optical rotation in sodium line (light wavelenth) was -5.0 degrees at 25 degrees Celsius. What is the specific rotation of the (-)-epinephrine? 2. Calculate the enantiomeric excess (e.e.), a measure of optical ...continues

Organic Chemistry

1. Write a detailed, stepwise mechanism to account for the following reaction. Be sure to include ALL the components of the mechanism. hr CH3CH2CH3 + BR2 -> CH3CHBrCH3 + HBr 2. When 2, 2-dimethylbutane is subjected to free radical chlorination, the relative reactivity of the types of hy ...continues

Organic Chemistry

4. Use the bond dissociation energies (kcal/mole) listed below to predict which of the following statements 1 or 2) would be expected to yield the most product. Be sure to show your work. R-H (98) R-C (81) RI (53) Cl-Cl (58) I-I (36) H-Cl (103) H-I (71) 1) RH (g) + Cl 2 (g) - > RCL(g) + HCL (g) 2) RH (g) + I2 (g) -> R ...continues

Organic Chemistry

10. The chlorination of propane yields 4 different dichloropropanes of formula C3H6Cl2. Using the following information to identify dichloropropanes A,B,C,D. i. If each dichloropropane is further chlorinated to yield trichloropropanes. Compound A gave one trichloropropane, B gave two, C and D each gave three. ii. Dichloropropa ...continues

Organic Chemistry

4. For each pair of compounds below, indicate the more reactive in the type of mechanism specified. Briefly state why. a. S(superscript)B2 (superscript): (CH3)3CCH2Br vs CH3CH2CHBrCH2CH3 b. El: CH3CHICH3 vs. CH3CHCLCH3 c. S(superscript)B1 (superscript): tert-butychloride solvolysis in 70% water - 30% acetone vs in 50 % wat ...continues

Organic Chemistry

8. Design synthesis for the following products. Use the starting materials that are indicated and any other reagents that you might need. a. 2-propanol (CH3CHOHCH3) from propane NEXT 1. Calculate the degree of unsaturation in C4H6 and draw at least 4 isomers with this formula. 2. Explain why dichloroethene has a boilin ...continues

Organic Chemistry

When isobutylene (CH3 - C=CH2) is treated with acid, two products result: 2, 4, 4-trimethyl-2-pentene and 2,4,4-trimethyl-1-pentene. Draw the products and show a mechanism to account for them.