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D Question 11 1 pts 1.b) A mixture of aspirin and caffeine (both are soluble in...
Question 11 1 pts 1. b) A mixture of aspirin and caffeine (both are soluble in...
Question 11 1 pts 1. b) A mixture of aspirin and caffeine (both are soluble in organic solvent and insoluble in water) can be separated by liquid-liquid extraction method Using NaHCO3 and chloroform: True/False O True O False Question 12 1 pts 1.c) in the above technique caffeine will be in the aqueous layer: True/False True False Question 13 1 pts 1. d) aspirin is in the organic layer: True/False True False D Question 14 1 pts 1. a) in...
Question 45 1. a) NMR spectrum of CH3-CH2-O-CH3 contain one singlet, one quartet, and one triplet:...
Question 45 1. a) NMR spectrum of CH3-CH2-O-CH3 contain one singlet, one quartet, and one triplet: True/False True False Question 46 1.b) CHCI-CHBr2: two doublets (d) will appear in the NMR spectra: True/False True False Question 47 1.c) CH3-CH2-CO-CH2-CN: IR spectra will show a peak at 1740 and 2200cm-1: True/False True False Question 48 1 pts 1.d) NMR of the above molecule will show two triplets and one singlets: True/False True False Question 49 1 pts 1. e) Or, one...
IR Spectroscopy of Aspirin 1. Draw the structure of aspirin and state the chemical name of...
IR Spectroscopy of Aspirin 1. Draw the structure of aspirin and state the chemical name of aspirin. 2. Indicate the regions (circle and label on your IR spectrum) of your spectrum that correspond to a carbonyl and a hydroxyl functional group. Identify two other regions that correlate with other functional groups/structural features. Indicate these regions on your spectrum (circle and label on your IR spectrum). 3. Use your IR spectrum, melting point data, and FeCly test results to characterize the...
Name: Question 11 Four compounds are shown below. Circle which compound is represented by the IR...
Name: Question 11 Four compounds are shown below. Circle which compound is represented by the IR spectrum above. n is in Briefly explain your reasoning (Think about what is present in the spectrum and what is not present) Structure VENURSER Structure Name: Structure Structure Structure Structure Question 12 1. On the following pages, you will find six IR spectra labeled A-F. Match each of the spectra with one of the following seven compounds (write the letter of the spectrum in...
1. Given the 'H NMR spectrum below and a molecular formula of CH20, provide a structure....
1. Given the 'H NMR spectrum below and a molecular formula of CH20, provide a structure. Note you must assign all of the signals in the spectrum below to receive full credit. IR: 1600-1650 cm' (multiple peaks) (5 pts.) 3H, S 3H. t 2H, d 2H, d 2H, PPM 2. Given the 'H NMR spectrum below and a molecular formula of CH.0, provide a structure. Note you must assign all of the signals in the spectrum below to receive full...
Question 1 1 pts What is the purpose of utilizing brine (saturated sodium chloride solution) during...
Question 1 1 pts What is the purpose of utilizing brine (saturated sodium chloride solution) during the liquid-liquid extraction portion of the bromohydrination of cyclohexene? To lower the solubility of organic molecules in the organic layer. To stabilize the carbocation formed during the course of the reactions. To remove excess water from the organic layer of the reaction. To ensure that enough water is present for the reaction to generate an alcohol. Question 2 1 pts Which of the following...
Use the following correlation chart to help answer the IR spectrum questions: small range range of...
Use the following correlation chart to help answer the IR spectrum questions: small range range of values N-H -O-H-CEN usually broad peak C-o strong 1600-1660 EC-H 3250-3300 2200 1680 gco sco 2710- 2820 2 peaks 3000- 3100 CECH (N-H C-H 1730 2200 broad with spikes --3300 O-H 1600 2850- 2960 1710 broad-3300-3400 -CO-H broad-3000 1650 4000 3500 3000 2000 1500 2500 wavenumber, cm 1000 1. (2 pts.) Shown below are IR spectra of cyclohexanecarbaldehyde (I) and cyclohexene (II). Which of...
The IR spectrum of a sample contains absorptions at 3050, 2950, and 1620 cm^-1. To what...
The IR spectrum of a sample contains absorptions at 3050, 2950, and 1620 cm^-1. To what class of organic compound does this sample most likely belong? A) alkane B) alkene C) alkyne D) ester E) alcohol Which of the following most closely matches the C C stretching frequency? A) 3300 B) 3000 C) 2200 D) 1700 E) 1200 What IR absorption is characteristic of the terminal C-H stretch in terminal alkynes? A) 3500 cm^-1 B) 3300 cm^-1 C) 2400 cm^-1...
ASAP please!! Question 33 1 pts 1.c) CH3-CH2-CH2-; Underlined hydrogen will show as sextet (6): True/False...
ASAP please!!
Question 33 1 pts 1.c) CH3-CH2-CH2-; Underlined hydrogen will show as sextet (6): True/False True False Question 34 1 pts 1. d) CH3-CH2-CH2-CH2-C1: Underlined hydrogen will show as sextet (6): True/False True False Question 35 1 pts 1. e) electron withdrawing group attached to carbon containing hydrogen will move hydrogen signal towards more upheld: True/False True False Question 36 1 pts 1. f) When a magnetic field is applied to a molecule the spin of proton will align...
DIRECTIONS: You must complete the entire assignment. 1. Given the 'H NMR spectrum below and a...
DIRECTIONS: You must complete the entire assignment. 1. Given the 'H NMR spectrum below and a molecular formula of CH, 0, provide a structure. Note you must assign all of the signals in the spectrum below to receive full credit. IR: 1600-1650 cm (multiple peaks) (5 pts.) 3H, 3H,t 2H, d 2H, d 2H,9 PPM 2. Given the 'H NMR spectrum below and a molecular formula of C.H.O. provide a structure. Note you must assign all of the signals in...
Question 11 1 pts 1. b) A mixture of aspirin and caffeine (both are soluble in organic solvent and insoluble in water) can be separated by liquid-liquid extraction method Using NaHCO3 and chloroform: True/False O True O False Question 12 1 pts 1.c) in the above technique caffeine will be in the aqueous layer: True/False True False Question 13 1 pts 1. d) aspirin is in the organic layer: True/False True False D Question 14 1 pts 1. a) in...
Question 45 1. a) NMR spectrum of CH3-CH2-O-CH3 contain one singlet, one quartet, and one triplet: True/False True False Question 46 1.b) CHCI-CHBr2: two doublets (d) will appear in the NMR spectra: True/False True False Question 47 1.c) CH3-CH2-CO-CH2-CN: IR spectra will show a peak at 1740 and 2200cm-1: True/False True False Question 48 1 pts 1.d) NMR of the above molecule will show two triplets and one singlets: True/False True False Question 49 1 pts 1. e) Or, one...
IR Spectroscopy of Aspirin 1. Draw the structure of aspirin and state the chemical name of aspirin. 2. Indicate the regions (circle and label on your IR spectrum) of your spectrum that correspond to a carbonyl and a hydroxyl functional group. Identify two other regions that correlate with other functional groups/structural features. Indicate these regions on your spectrum (circle and label on your IR spectrum). 3. Use your IR spectrum, melting point data, and FeCly test results to characterize the...
Name: Question 11 Four compounds are shown below. Circle which compound is represented by the IR spectrum above. n is in Briefly explain your reasoning (Think about what is present in the spectrum and what is not present) Structure VENURSER Structure Name: Structure Structure Structure Structure Question 12 1. On the following pages, you will find six IR spectra labeled A-F. Match each of the spectra with one of the following seven compounds (write the letter of the spectrum in...
1. Given the 'H NMR spectrum below and a molecular formula of CH20, provide a structure. Note you must assign all of the signals in the spectrum below to receive full credit. IR: 1600-1650 cm' (multiple peaks) (5 pts.) 3H, S 3H. t 2H, d 2H, d 2H, PPM 2. Given the 'H NMR spectrum below and a molecular formula of CH.0, provide a structure. Note you must assign all of the signals in the spectrum below to receive full...
Question 1 1 pts What is the purpose of utilizing brine (saturated sodium chloride solution) during the liquid-liquid extraction portion of the bromohydrination of cyclohexene? To lower the solubility of organic molecules in the organic layer. To stabilize the carbocation formed during the course of the reactions. To remove excess water from the organic layer of the reaction. To ensure that enough water is present for the reaction to generate an alcohol. Question 2 1 pts Which of the following...
Use the following correlation chart to help answer the IR spectrum questions: small range range of values N-H -O-H-CEN usually broad peak C-o strong 1600-1660 EC-H 3250-3300 2200 1680 gco sco 2710- 2820 2 peaks 3000- 3100 CECH (N-H C-H 1730 2200 broad with spikes --3300 O-H 1600 2850- 2960 1710 broad-3300-3400 -CO-H broad-3000 1650 4000 3500 3000 2000 1500 2500 wavenumber, cm 1000 1. (2 pts.) Shown below are IR spectra of cyclohexanecarbaldehyde (I) and cyclohexene (II). Which of...
The IR spectrum of a sample contains absorptions at 3050, 2950, and 1620 cm^-1. To what class of organic compound does this sample most likely belong? A) alkane B) alkene C) alkyne D) ester E) alcohol Which of the following most closely matches the C C stretching frequency? A) 3300 B) 3000 C) 2200 D) 1700 E) 1200 What IR absorption is characteristic of the terminal C-H stretch in terminal alkynes? A) 3500 cm^-1 B) 3300 cm^-1 C) 2400 cm^-1...
ASAP please!!
Question 33 1 pts 1.c) CH3-CH2-CH2-; Underlined hydrogen will show as sextet (6): True/False True False Question 34 1 pts 1. d) CH3-CH2-CH2-CH2-C1: Underlined hydrogen will show as sextet (6): True/False True False Question 35 1 pts 1. e) electron withdrawing group attached to carbon containing hydrogen will move hydrogen signal towards more upheld: True/False True False Question 36 1 pts 1. f) When a magnetic field is applied to a molecule the spin of proton will align...
DIRECTIONS: You must complete the entire assignment. 1. Given the 'H NMR spectrum below and a molecular formula of CH, 0, provide a structure. Note you must assign all of the signals in the spectrum below to receive full credit. IR: 1600-1650 cm (multiple peaks) (5 pts.) 3H, 3H,t 2H, d 2H, d 2H,9 PPM 2. Given the 'H NMR spectrum below and a molecular formula of C.H.O. provide a structure. Note you must assign all of the signals in...
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