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5. Select the incorrect statement. (2 pts) a) An NMR of of benzoin will have a...
1. Calculate the overall yield for this 2-step reaction assuming the first and second steps had...
1. Calculate the overall yield for this 2-step reaction assuming the first and second steps had percentage yields of 50 % and 75 % respectively. (2 pts) - show calculations i r thiamine HNO3 thiamine → i OH HNO - 2. Circle the 'H NMR of Benzaldehyde. (2 pts) a) 3. What is the incorrect statement? (2 pts) When Benzaldehyde is converted to benzoin, a) The peak around 10 ppm in the H NMR is lost c)A peak around 3500...
1. An C-NMR of tetraphenylcyclopentadienone would have peaks where? (Could be multiple answers) a. 210 ppm...
1. An C-NMR of tetraphenylcyclopentadienone would have peaks where? (Could be multiple answers) a. 210 ppm b. 15 ppm c. 30 ppm d. 110-170 ppm 2. An IR of tetraphenylcyclopentadienone would have absorbances at which of the following frequencies? (Could be mulitple answers) a. 2200 cm-1 b. just below 3000 cm-1 c. 1720 cm-1 d. just above 3000 cm-1 3. What would your percent yield be if you obtained 0.25 g of the tetraphenylcyclopentadienone when you had used 0.145 g...
Step 2 Oxidation of Benzoin to Benzil. HNO3 (conc.) OH C14H Mol. Wt.: 210.23 C14H1 Mol. Wt.: 212....
numbers 2 and 5 please!
Step 2 Oxidation of Benzoin to Benzil. HNO3 (conc.) OH C14H Mol. Wt.: 210.23 C14H1 Mol. Wt.: 212.24 Ox: OH red: redox: 3 +2 HNO33 + 2 NO (g)4H2O он cr но NaOH molecular formula? molecular formula? MW? 97 mL? (for liquids) d? (for pure liquids) M? (for solutions) mmol? 97 mL? (for liquids) d? (for pure liquids) M? (for solutions) mmol? molecular formula? MW? g? mL? (for liquids) molecular formula? MW? 97 mL? (for...
5 pts Question 17 Which structure belongs to the H NMR spectrum shown below? 3 2...
5 pts Question 17 Which structure belongs to the H NMR spectrum shown below? 3 2 PPM B) 0 C) D) ОА OB Ос OD
Ochem 2 ch 19-20 Chemistry 2320 Ch 19 and 20-Carboxylic Acids and Derivatives (100 pts) Select...
Ochem 2 ch 19-20
Chemistry 2320 Ch 19 and 20-Carboxylic Acids and Derivatives (100 pts) Select the products and the reagents for the following sequence by writing the numbers of the products formed in the box and the letter of the reagents used over the arrows. The order of steps is important. Not all products or reagents will be used. 4. A. CH OH, H2SO, (cat) Number: OH Letter B. Na Cr O H2SO C. Br CO-CH C D. O...
thanks!! There is a mistake on this, e on compound 18a is 3 hydrogens not 2!!!!...
thanks!! There is a mistake on this, e on compound 18a is 3
hydrogens not 2!!!! thanks again :)
On each the following IR spectra, circle and indicate the most important stretching signal from the following choices:N-H, O-H, CEN, CEO, C-O, Top, IR spectrum of Compound 18a: C14H1402 Bottom, IR Spectrum of Compound 18b: C3H120. write your answer on the corresponding square provided (2.5 pts each, 5 pts total) mar 2000 6 18. Draw the structures of Compound 18a. and...
Thanks! On each the following IR spectra, circle and indicate the most important stretching signal from...
Thanks!
On each the following IR spectra, circle and indicate the most important stretching signal from the following choices:N-H, O-H, CEN, CEO, C-O, Top, IR spectrum of Compound 18a: C14H1402 Bottom, IR Spectrum of Compound 18b: C3H120. write your answer on the corresponding square provided (2.5 pts each, 5 pts total) mar 2000 6 18. Draw the structures of Compound 18a. and 18b. (18 pts), clearly indicate your assignments of all proton resonances (8 pts). Calculate the Unsaturation Index of...
What is answer of #10?? Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1....
What is answer of #10??
Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1. After reviewing the GC and 'H NMR spectra, what is the major product of the reaction? + 3 a. BH: . THF 3 b. 3 H2O2 OH + 3 OH c. NaOH MOH OH racemic racemic major 2. Draw the complete curved arrow mechanism for the reaction to produce the major product, including both the hydroboration and oxidation steps. Repetitive steps need only be...
question in first picture information located below mass of empty vial (979.2mg) then mass with crude...
question in first picture
information located below
mass of empty vial (979.2mg) then mass with crude
(1769.1mg)
mass of empty vial (1769.1mg) then yield with pure
ester product(18535.6mg)
Actual ester yield (calculations in your lab notebook must be present, re-type it in the report). Theoretical yield (calculations in your lab notebook must be present, re-type it in the report). Percent yield (calculations in your lab notebook must be present, re-type it in the report). in loto in table format) drawstructure...
What is answer of #9??? Help me Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis /...
What is answer of #9???
Help me
Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1. After reviewing the GC and 'H NMR spectra, what is the major product of the reaction? + 3 a. BH: . THF 3 b. 3 H2O2 OH + 3 OH c. NaOH MOH OH racemic racemic major 2. Draw the complete curved arrow mechanism for the reaction to produce the major product, including both the hydroboration and oxidation steps. Repetitive steps need...
1. Calculate the overall yield for this 2-step reaction assuming the first and second steps had percentage yields of 50 % and 75 % respectively. (2 pts) - show calculations i r thiamine HNO3 thiamine → i OH HNO - 2. Circle the 'H NMR of Benzaldehyde. (2 pts) a) 3. What is the incorrect statement? (2 pts) When Benzaldehyde is converted to benzoin, a) The peak around 10 ppm in the H NMR is lost c)A peak around 3500...
numbers 2 and 5 please!
Step 2 Oxidation of Benzoin to Benzil. HNO3 (conc.) OH C14H Mol. Wt.: 210.23 C14H1 Mol. Wt.: 212.24 Ox: OH red: redox: 3 +2 HNO33 + 2 NO (g)4H2O он cr но NaOH molecular formula? molecular formula? MW? 97 mL? (for liquids) d? (for pure liquids) M? (for solutions) mmol? 97 mL? (for liquids) d? (for pure liquids) M? (for solutions) mmol? molecular formula? MW? g? mL? (for liquids) molecular formula? MW? 97 mL? (for...
5 pts Question 17 Which structure belongs to the H NMR spectrum shown below? 3 2 PPM B) 0 C) D) ОА OB Ос OD
Ochem 2 ch 19-20
Chemistry 2320 Ch 19 and 20-Carboxylic Acids and Derivatives (100 pts) Select the products and the reagents for the following sequence by writing the numbers of the products formed in the box and the letter of the reagents used over the arrows. The order of steps is important. Not all products or reagents will be used. 4. A. CH OH, H2SO, (cat) Number: OH Letter B. Na Cr O H2SO C. Br CO-CH C D. O...
thanks!! There is a mistake on this, e on compound 18a is 3
hydrogens not 2!!!! thanks again :)
On each the following IR spectra, circle and indicate the most important stretching signal from the following choices:N-H, O-H, CEN, CEO, C-O, Top, IR spectrum of Compound 18a: C14H1402 Bottom, IR Spectrum of Compound 18b: C3H120. write your answer on the corresponding square provided (2.5 pts each, 5 pts total) mar 2000 6 18. Draw the structures of Compound 18a. and...
Thanks!
On each the following IR spectra, circle and indicate the most important stretching signal from the following choices:N-H, O-H, CEN, CEO, C-O, Top, IR spectrum of Compound 18a: C14H1402 Bottom, IR Spectrum of Compound 18b: C3H120. write your answer on the corresponding square provided (2.5 pts each, 5 pts total) mar 2000 6 18. Draw the structures of Compound 18a. and 18b. (18 pts), clearly indicate your assignments of all proton resonances (8 pts). Calculate the Unsaturation Index of...
What is answer of #10??
Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1. After reviewing the GC and 'H NMR spectra, what is the major product of the reaction? + 3 a. BH: . THF 3 b. 3 H2O2 OH + 3 OH c. NaOH MOH OH racemic racemic major 2. Draw the complete curved arrow mechanism for the reaction to produce the major product, including both the hydroboration and oxidation steps. Repetitive steps need only be...
question in first picture
information located below
mass of empty vial (979.2mg) then mass with crude
(1769.1mg)
mass of empty vial (1769.1mg) then yield with pure
ester product(18535.6mg)
Actual ester yield (calculations in your lab notebook must be present, re-type it in the report). Theoretical yield (calculations in your lab notebook must be present, re-type it in the report). Percent yield (calculations in your lab notebook must be present, re-type it in the report). in loto in table format) drawstructure...
What is answer of #9???
Help me
Report: Hydroboration of 1-Methylcyclohexene Mechanism / GC Analysis / Calculations 1. After reviewing the GC and 'H NMR spectra, what is the major product of the reaction? + 3 a. BH: . THF 3 b. 3 H2O2 OH + 3 OH c. NaOH MOH OH racemic racemic major 2. Draw the complete curved arrow mechanism for the reaction to produce the major product, including both the hydroboration and oxidation steps. Repetitive steps need...
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