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A compound has the empirical formula of C7H15CIO. The 'H NMR integration values...
Rank the following compounds from largest RF (on the left) to smallest Rf (on the right)...
Rank the following compounds from largest RF (on the left) to smallest Rf (on the right) in a TLC run with hexanelethyl acetate mobile phase. OH Di O I>II>11 ||I>II> 111>I>II 11>I>I|| A reaction was carried out between maleic anhydride (MA) and anthracene (A). The final reaction mixture (R) and samples of both starting materials were spotted on a TLC plate and run. Which plate shows that the reaction mixture contains a new product and maleic anhydride as excess reagent?...
Question 34 (3 points) Rank the following compounds from largest Rf (on the left) to smallest...
Question 34 (3 points) Rank the following compounds from largest Rf (on the left) to smallest Rf (on the right) in a TLC run with hexane/ethyl acetate mobile phase. OH . HII O>>11 >> O >> >1>111
for the 1H NMR spectra, draw the molecule with the given formula that would have each...
for
the 1H NMR spectra, draw the molecule with the given formula that
would have each soectra.
C8H.4. This is an alkyne. The relative integrations of the signals are I = 3, II = 9, III = 2. 8 5 4 PP 3 2 0 CgH:02. The singlet at 8 = 3.9 has an integration of 3, and the signals in the 8 = 1-8 region in total have an integration of 5. C8H802. The singlet at 8 = 3.9...
QUESTION 24 Rank the following alcohols in decreasing order of acidity. ROH ON OH ОН NC...
QUESTION 24 Rank the following alcohols in decreasing order of acidity. ROH ON OH ОН NC II III A) I>III>II B) III>II>I C) II>III>I DI>II>III A B C D QUESTION 23 How would you use 'H NMR spectroscopy to distinguish between the following two compounds? W H II A) I=3 signals & II=2 signals B) 1-4 signals & I1=3 signals C) 1=5 signals & 11=3 signals A B OC QUESTION 22 Provide the reagents necessary to prepare the following compound...
explain 02. A compound with a molecular formula C&H SCIO, has the following 'H NMR spectrum....
explain
02. A compound with a molecular formula C&H SCIO, has the following 'H NMR spectrum. The IR spectrum shows strong absorption at 1800 cm!. Which of the following structures is consistent with this spectrum? PPM علی علی معلم A) I B) II C) III D) IV E) none of these 89. A compound with a molecular formula C10H1202 has the following 'H NMR spectrum. Which of the following structures is consistent with this spectrum? 11 10 9 8 2...
Question 7 (2 points) A compound with a molecular formula of C10H1202 has the following TH...
Question 7 (2 points) A compound with a molecular formula of C10H1202 has the following TH NMR spectrum. Which of the following structures is consistent with this spectrum? OCH CH.CH CH,CH.CH 1 OOH OH CH,CH,CH, CH2CH.CH IV Oa) III Ob) IV Oc) 11 od) Question 8 (2 points) Predict the product(s) for the following reaction: NH, 14H NH $ NH2 Oa) I and II ob) I, II and III Oc) III and I od) II and III
7. Given the following 'H NMR spectrum for a compound with molecular formula C:HgCl2, a. (4...
7. Given the following 'H NMR spectrum for a compound with molecular formula C:HgCl2, a. (4 points) Propose a structure for the compound b. (6 points) Describe each signal in terms of its integration, splitting and chemical shift. 11 10 9 8 7 6 4 3 2 1 5 ppm
Please help...and explain.. Rank the acidity of the protons shown in the picture (from most acidic...
Please help...and explain..
Rank the acidity of the protons shown in the picture (from most acidic to least) I > II > III = IV IV > I = II > III IV > I > II > II I > II > IV > III What accounts for the difference between the acidity of proton (IV) and protons (I and II)? (may be more than one answer) Feature 1: energy and entropy stabilization Feature 2: energy and entropy stabilization...
Question 33 The correct structure for ethyl 2-chloropentanoyl chloride is: o OH CI CI ОН OH...
Question 33 The correct structure for ethyl 2-chloropentanoyl chloride is: o OH CI CI ОН OH I II III "CI CI CI IV V A. II B. I C. IV D.V E. III Question 34 A compound with the molecular formula Cg4 gBro gave the following H NMR spectrum: triplet, 5 1.4 quartet, 8 3.9 multiplet, 5 7.0 (4H) There was no evidence of an -OH band in the IR spectrum. A possible structure for the compound is: Br Br...
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a...
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a strong absorption band near 1740 cm -1; its TH NMR spectrum consists of two singlets, at d 1.4 and 8 2.0. The most likely structure for this compound is: فهل voir I II III ti H IV CA. V B. III C. D. II E. IV Question 10 What is the IUPAC name for A. 2,3-Dimethylbutyl formylate B. 2,3-Dimethylbutyl methanoate C. 2,3-Dimethylbutyl methylate D....
Rank the following compounds from largest RF (on the left) to smallest Rf (on the right) in a TLC run with hexanelethyl acetate mobile phase. OH Di O I>II>11 ||I>II> 111>I>II 11>I>I|| A reaction was carried out between maleic anhydride (MA) and anthracene (A). The final reaction mixture (R) and samples of both starting materials were spotted on a TLC plate and run. Which plate shows that the reaction mixture contains a new product and maleic anhydride as excess reagent?...
Question 34 (3 points) Rank the following compounds from largest Rf (on the left) to smallest Rf (on the right) in a TLC run with hexane/ethyl acetate mobile phase. OH . HII O>>11 >> O >> >1>111
for
the 1H NMR spectra, draw the molecule with the given formula that
would have each soectra.
C8H.4. This is an alkyne. The relative integrations of the signals are I = 3, II = 9, III = 2. 8 5 4 PP 3 2 0 CgH:02. The singlet at 8 = 3.9 has an integration of 3, and the signals in the 8 = 1-8 region in total have an integration of 5. C8H802. The singlet at 8 = 3.9...
QUESTION 24 Rank the following alcohols in decreasing order of acidity. ROH ON OH ОН NC II III A) I>III>II B) III>II>I C) II>III>I DI>II>III A B C D QUESTION 23 How would you use 'H NMR spectroscopy to distinguish between the following two compounds? W H II A) I=3 signals & II=2 signals B) 1-4 signals & I1=3 signals C) 1=5 signals & 11=3 signals A B OC QUESTION 22 Provide the reagents necessary to prepare the following compound...
explain
02. A compound with a molecular formula C&H SCIO, has the following 'H NMR spectrum. The IR spectrum shows strong absorption at 1800 cm!. Which of the following structures is consistent with this spectrum? PPM علی علی معلم A) I B) II C) III D) IV E) none of these 89. A compound with a molecular formula C10H1202 has the following 'H NMR spectrum. Which of the following structures is consistent with this spectrum? 11 10 9 8 2...
Question 7 (2 points) A compound with a molecular formula of C10H1202 has the following TH NMR spectrum. Which of the following structures is consistent with this spectrum? OCH CH.CH CH,CH.CH 1 OOH OH CH,CH,CH, CH2CH.CH IV Oa) III Ob) IV Oc) 11 od) Question 8 (2 points) Predict the product(s) for the following reaction: NH, 14H NH $ NH2 Oa) I and II ob) I, II and III Oc) III and I od) II and III
7. Given the following 'H NMR spectrum for a compound with molecular formula C:HgCl2, a. (4 points) Propose a structure for the compound b. (6 points) Describe each signal in terms of its integration, splitting and chemical shift. 11 10 9 8 7 6 4 3 2 1 5 ppm
Please help...and explain..
Rank the acidity of the protons shown in the picture (from most acidic to least) I > II > III = IV IV > I = II > III IV > I > II > II I > II > IV > III What accounts for the difference between the acidity of proton (IV) and protons (I and II)? (may be more than one answer) Feature 1: energy and entropy stabilization Feature 2: energy and entropy stabilization...
Question 33 The correct structure for ethyl 2-chloropentanoyl chloride is: o OH CI CI ОН OH I II III "CI CI CI IV V A. II B. I C. IV D.V E. III Question 34 A compound with the molecular formula Cg4 gBro gave the following H NMR spectrum: triplet, 5 1.4 quartet, 8 3.9 multiplet, 5 7.0 (4H) There was no evidence of an -OH band in the IR spectrum. A possible structure for the compound is: Br Br...
Question 9 A compound has the molecular formula, C6H 120 2. Its IR spectrum shows a strong absorption band near 1740 cm -1; its TH NMR spectrum consists of two singlets, at d 1.4 and 8 2.0. The most likely structure for this compound is: فهل voir I II III ti H IV CA. V B. III C. D. II E. IV Question 10 What is the IUPAC name for A. 2,3-Dimethylbutyl formylate B. 2,3-Dimethylbutyl methanoate C. 2,3-Dimethylbutyl methylate D....
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