Assume that optically pure (S)-2-iodononane has a specific rotation of + 9.5o (clockwise rotation of the...
Assume that optically pure (S)-2-iodononane has a specific rotation of + 9.5o (clockwise rotation of the plane-polarized light). Claculate the percentage of (S) enantiomer required when the specific rotation for a mixture of 2-iodononane enantiomers will be -2.1o (counterclockwise rotation of the plane-polarized light).
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Assume that optically pure (S)-2-iodononane has a specific
rotation of + 9.5o (clockwise rotation of the...
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixtur...
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +11.7. If it is known that the specific rotation of the R enantiomer is -38.9, determine the percentage of each isomer in the mixture. Number R enantiomer: % Number S enantiomer
The specific rotation of pure (-)-2-butanol is -13.5°. If a mixture has a specific rotation of...
The specific rotation of pure (-)-2-butanol is -13.5°. If a mixture has a specific rotation of +7o, how much of each form (+ and-) is present and what is the e.e. of the mixture? 21. 22. (-)-Lactic acid has a specific rotation of -3.8°. What is the specific rotation of a solution containing 7.5 g of (--lactic acid and 2.5 g of (+)-lactic acid? 23. Draw the Fischer projection of (2R,4R)-2,4-dibromopentane. w? And draw the 24. How many diastereomers are...
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers....
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +12.2°. If it is known that the specific rotation of the R enantiomer is - 36.5°, determine the percentage of each isomer in the mixture. Number R enantiomer: Number Senantiomer:
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers....
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +16.5°. If it is known that the specific rotation of the R enantiomer is -29.1", determine the percentage of each isomer in the mixture. Number R enantiomer: % Number Senantiomer: %
21. Answer ALL parts of this question. The anti-inflammatory agent, (S)-naproxen sodium salt has a specific...
21. Answer ALL parts of this question. The anti-inflammatory agent, (S)-naproxen sodium salt has a specific rotation of +66º. The commercial preparation of the latter agent results in a mixture that has a 97% enantiomeric excess (ee). colo H3C0 (S)-naproxen sodium salt (a) Draw the R enantiomer of naproxen sodium salt. (1 mark) (b) What effect does the R enantiomer have on plane-polarized light? (1 mark) (c) What is the observed specific rotation of anti-inflammatory agent mixture? (4 marks) (d)...
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers....
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of 14.3°. If it is known that the specific rotation of the R enantiomer is –35.1°, determine the percentage of each isomer in the mixture.
1) Suppose that a pure compound has a specific rotation of +49°. In the laboratory a...
1) Suppose that a pure compound has a specific rotation of +49°. In the laboratory a solution in which the compound is mixed with its enantiomer is found to have a specific rotation of +12. What is the %ee of the mixture? What percent of the mixture is (+) enantiomer and what percent is (-) enantiomer? 2) Give the structure of 3,3-Dimethylpetane. How many monochlorinated product can be formed from this compound reacting with Cl? Give the structure of each...
Racemic mixture of enantiomers Exchange anion for optically active anion Mixture of diastereomers Separatioin Pure (+)-...
Racemic mixture of enantiomers Exchange anion for optically active anion Mixture of diastereomers Separatioin Pure (+)-d-diastereomer Pure ()-d-diastereomer Exchange optically active anion for iodide Pure (+)-enantiomer Pure (-enantiomer (v) The flow chart above represents the steps used in this experiment to resolve the racemic mixture of (+)-ICo(en)s]Cl and (-)-[Co(en)s]Cls. Sketch this chart and fill in the blank boxes with the appropriate chemical formulae. (vi) From the flow chart, identify the relationship between: - the pair of tartrate salts - the...
A student measured the specific rotation of a mixture and found it to be 10.00 degrees....
A student measured the specific rotation of a mixture and found it to be 10.00 degrees. If the specific rotation for the pure R enantiomer is 40.00 degrees, then what is the enantiomeric excess of the solution? What is the actual composition of R and S enantiomers?
The specific rotation [a] of pure quinine is -165º. A solution containing both quinine and its...
The specific rotation [a] of pure quinine is -165º. A solution containing both quinine and its enantiomer has a specific rotation of -63º. Calculate the percentage of quinine present in the mixture? (show calculations; 0.3 pts) HO LN HC quinine % quinine =
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +11.7. If it is known that the specific rotation of the R enantiomer is -38.9, determine the percentage of each isomer in the mixture. Number R enantiomer: % Number S enantiomer
The specific rotation of pure (-)-2-butanol is -13.5°. If a mixture has a specific rotation of +7o, how much of each form (+ and-) is present and what is the e.e. of the mixture? 21. 22. (-)-Lactic acid has a specific rotation of -3.8°. What is the specific rotation of a solution containing 7.5 g of (--lactic acid and 2.5 g of (+)-lactic acid? 23. Draw the Fischer projection of (2R,4R)-2,4-dibromopentane. w? And draw the 24. How many diastereomers are...
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +12.2°. If it is known that the specific rotation of the R enantiomer is - 36.5°, determine the percentage of each isomer in the mixture. Number R enantiomer: Number Senantiomer:
An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +16.5°. If it is known that the specific rotation of the R enantiomer is -29.1", determine the percentage of each isomer in the mixture. Number R enantiomer: % Number Senantiomer: %
21. Answer ALL parts of this question. The anti-inflammatory agent, (S)-naproxen sodium salt has a specific rotation of +66º. The commercial preparation of the latter agent results in a mixture that has a 97% enantiomeric excess (ee). colo H3C0 (S)-naproxen sodium salt (a) Draw the R enantiomer of naproxen sodium salt. (1 mark) (b) What effect does the R enantiomer have on plane-polarized light? (1 mark) (c) What is the observed specific rotation of anti-inflammatory agent mixture? (4 marks) (d)...
1) Suppose that a pure compound has a specific rotation of +49°. In the laboratory a solution in which the compound is mixed with its enantiomer is found to have a specific rotation of +12. What is the %ee of the mixture? What percent of the mixture is (+) enantiomer and what percent is (-) enantiomer? 2) Give the structure of 3,3-Dimethylpetane. How many monochlorinated product can be formed from this compound reacting with Cl? Give the structure of each...
Racemic mixture of enantiomers Exchange anion for optically active anion Mixture of diastereomers Separatioin Pure (+)-d-diastereomer Pure ()-d-diastereomer Exchange optically active anion for iodide Pure (+)-enantiomer Pure (-enantiomer (v) The flow chart above represents the steps used in this experiment to resolve the racemic mixture of (+)-ICo(en)s]Cl and (-)-[Co(en)s]Cls. Sketch this chart and fill in the blank boxes with the appropriate chemical formulae. (vi) From the flow chart, identify the relationship between: - the pair of tartrate salts - the...
The specific rotation [a] of pure quinine is -165º. A solution containing both quinine and its enantiomer has a specific rotation of -63º. Calculate the percentage of quinine present in the mixture? (show calculations; 0.3 pts) HO LN HC quinine % quinine =
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