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QUESTION 11 11. What is the enantiomeric excess of a mixture containing 6.0 g of (-)-glyceraldehyde...
the enantiomeric excess for the following mixture of enantiomers A and B (5.12D)? 11. (1 point)...
the enantiomeric excess for the following mixture of enantiomers A and B (5.12D)? 11. (1 point) What is enantio 85% A and 1500 B (2 points) Name the following molecules including absolute configuration (R or S) of each asymmetric carbon: Assign priorities a, b, c, & d. 8. a) d Ci oi 25, 3R -3,3-diuhloro pentau Cl b)
2. what is the ratio of enantiomers in a mixture with an enantiomeric excess of 50%?...
2. what is the
ratio of enantiomers in a mixture with an enantiomeric excess of
50%?
1. If (R)-2-bromobutane has a specific rotation of -23°, what is the value of [a], for dextrarotatory 2- bromobutane at the same temperature? +23 2. What is the ratio of enantiomers in a mixture with an enantiomeric excess of 50%? 3. a) Draw the structure of (2S,3S)-2,3-difluorobutane in an extended zig-zag line drawing using wedged and dashed bonds where appropriate.
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess....
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess. If R-3-bromo-2- methylhexane is -80 degrees, would a polarimetry reading of the mixture in this problem rotate light (3) clockwise (CW) or counterclockwise (CC) (8) Br Br 15% 85% (this question is worth 9 points, not 8 as stated in the picture) 1. determine enantiomeric excess (your answer should be a number) 2. determine whether excess is S or R. 3. Does the mixture...
Limiting Reactants, Excess Reactant, and % Yield Name H2+Cl2HCI A gaseous mixture containing 7.5 g of H; gas and 9....
Limiting Reactants, Excess Reactant, and % Yield Name H2+Cl2HCI A gaseous mixture containing 7.5 g of H; gas and 9.00 g of Cl2 gas react to form hydrogen chloride gas. а) Which is the limiting reactant? If all the limiting reactant is consumed, how many grams of HCl are produced? How many grams of excess reactant remain un-reacted? b) c) Cl2+3F22CIF Chlorine reacts with fluorine to form gaseous chlorine trifluoride. You start with 50.0g of chlorine and 95.0g of fluorine....
10) Which of the following are optically inactive? A) a 50-50 mixture of Rand Senantiomers B)...
10) Which of the following are optically inactive? A) a 50-50 mixture of Rand Senantiomers B) a racemic mixture C) every achiral compound D) a meso compound E) all the above 11) If (S)-glyceraldehyde has a specific rotation of -8.7, what is the specific rotation of (R)-glyceraldehyde? A) +8.7 B) -8.7 C) 0.0 D) cannot be determined from the information given 12) What is the relationship between the following compounds? HCI CH - CH₂ CH3 HEC HCI HEC X сін...
8. What is the actual enantiomeric percent composition of a mixture of (S)-(+)- Carvone. [a]= + 15.5, and (R)-(-)-C...
8. What is the actual enantiomeric percent composition of a mixture of (S)-(+)- Carvone. [a]= + 15.5, and (R)-(-)-Carvone la] = - 15.5 with a specific rotation of la]= +4.9? a) 50-50% R and S b) 65.8% R and 34.2 % S c) 31.6% R and 68.4 % mixture d) 65.8% S and 34.2% R e) 31.6% S and 31.6 % R and 36.8% mixture 9. Which of the following statements is true? a) SN2 reactions of secondary alkyl halides...
A mixture containing 0.769 mol He(g), 0.321 mol Ne(g), and 0.114 mol Ar(g) is confined in...
A mixture containing 0.769 mol He(g), 0.321 mol Ne(g), and 0.114 mol Ar(g) is confined in a 10.00-L vessel at 25 ∘C. A. Calculate the partial pressure of He in the mixture. B. Calculate the partial pressure of Ne in the mixture. C. Calculate the partial pressure of Ar in the mixture. D. Calculate the total pressure of the mixture.
A mixture containing 0.765 mol He(g), 0.243 mol Ne(g), and 0.118 mol Ar(g) is confined in...
A mixture containing 0.765 mol He(g), 0.243 mol Ne(g), and 0.118 mol Ar(g) is confined in a 10.00-L vessel at 25 C A. Calculate the partial pressure of He in the mixture. B. Calculate the partial pressure of Ne in the mixture. C. Calculate the partial pressure of Ar in the mixture. D. Calculate the total pressure of the mixture.
A mixture containing 0.766 mol He(g), 0.284 mol Ne(g), and 0.117 mol Ar(g) is confined in...
A mixture containing 0.766 mol He(g), 0.284 mol Ne(g), and 0.117 mol Ar(g) is confined in a 10.00-L vessel at 25 ∘C. Part A: Calculate the partial pressure of He in the mixture. Part B: Calculate the partial pressure of Ne in the mixture. Part C: Calculate the partial pressure of Ar in the mixture. Part D: Calculate the total pressure of the mixture.
What volume of a 6.0% solution of ethanol contains 3.0 g of ethanol? 6. What volume...
What volume of a 6.0% solution of ethanol contains 3.0 g of
ethanol?
6. What volume of a 60% solution of ethanol contain 3.0 g of ethanol? A) 5.0 mL B) 6.0 mL C) 10 ml D) 30 mlL E) 50 mlL
the enantiomeric excess for the following mixture of enantiomers A and B (5.12D)? 11. (1 point) What is enantio 85% A and 1500 B (2 points) Name the following molecules including absolute configuration (R or S) of each asymmetric carbon: Assign priorities a, b, c, & d. 8. a) d Ci oi 25, 3R -3,3-diuhloro pentau Cl b)
2. what is the
ratio of enantiomers in a mixture with an enantiomeric excess of
50%?
1. If (R)-2-bromobutane has a specific rotation of -23°, what is the value of [a], for dextrarotatory 2- bromobutane at the same temperature? +23 2. What is the ratio of enantiomers in a mixture with an enantiomeric excess of 50%? 3. a) Draw the structure of (2S,3S)-2,3-difluorobutane in an extended zig-zag line drawing using wedged and dashed bonds where appropriate.
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess. If R-3-bromo-2- methylhexane is -80 degrees, would a polarimetry reading of the mixture in this problem rotate light (3) clockwise (CW) or counterclockwise (CC) (8) Br Br 15% 85% (this question is worth 9 points, not 8 as stated in the picture) 1. determine enantiomeric excess (your answer should be a number) 2. determine whether excess is S or R. 3. Does the mixture...
Limiting Reactants, Excess Reactant, and % Yield Name H2+Cl2HCI A gaseous mixture containing 7.5 g of H; gas and 9.00 g of Cl2 gas react to form hydrogen chloride gas. а) Which is the limiting reactant? If all the limiting reactant is consumed, how many grams of HCl are produced? How many grams of excess reactant remain un-reacted? b) c) Cl2+3F22CIF Chlorine reacts with fluorine to form gaseous chlorine trifluoride. You start with 50.0g of chlorine and 95.0g of fluorine....
10) Which of the following are optically inactive? A) a 50-50 mixture of Rand Senantiomers B) a racemic mixture C) every achiral compound D) a meso compound E) all the above 11) If (S)-glyceraldehyde has a specific rotation of -8.7, what is the specific rotation of (R)-glyceraldehyde? A) +8.7 B) -8.7 C) 0.0 D) cannot be determined from the information given 12) What is the relationship between the following compounds? HCI CH - CH₂ CH3 HEC HCI HEC X сін...
8. What is the actual enantiomeric percent composition of a mixture of (S)-(+)- Carvone. [a]= + 15.5, and (R)-(-)-Carvone la] = - 15.5 with a specific rotation of la]= +4.9? a) 50-50% R and S b) 65.8% R and 34.2 % S c) 31.6% R and 68.4 % mixture d) 65.8% S and 34.2% R e) 31.6% S and 31.6 % R and 36.8% mixture 9. Which of the following statements is true? a) SN2 reactions of secondary alkyl halides...
What volume of a 6.0% solution of ethanol contains 3.0 g of
ethanol?
6. What volume of a 60% solution of ethanol contain 3.0 g of ethanol? A) 5.0 mL B) 6.0 mL C) 10 ml D) 30 mlL E) 50 mlL
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