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Ohio State | CHEM 254
Organic Chemistry Laboratory
Professors
- Callam,
- Dr. Christopher Callam
43 sample documents related to CHEM 254
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Ohio State CHEM 254
Chem 254 Callam Part 1. Extraction. Assume you have been given a mixture of pyridine, decalin, and phenol. Propose a step by step procedure for their separation to obtain each compound in pure form. All details must be included (i.e. organic solvents, aqu -
Ohio State CHEM 254
Chem 254 Callam Part 1. Extraction. Assume you have been given a mixture of pyridine, decalin, and phenol. Propose a step by step procedure for their separation to obtain each compound in pure form. All details must be included (i.e. organic solvents, aqu -
Ohio State CHEM 254
Elctrophilic Aromatic Substitution Nitration of Veratrole Cameron Trefny Mackenzie Schumer W/F 8:30 a.m. 430 CE February 10, 2012 Purpose: To synthesize 1,2-dimethoxy-4-nitro-benzene (4-nitro-veratrole) from 1,2dimethoxybenzene (veratrole) and Nitric acid -
Ohio State CHEM 254
Ester Synthesis Fischer Esterification Cameron Trefny Mackenzie Schumer W/F 8:30 a.m. 430 CE February 10, 2012 Purpose: To synthesize propylacetate from propanol and acetic acid in an acid catalyzed esterification reaction. Reaction Scheme: Procedure:1 A -
Ohio State CHEM 254
Chapter 6 1. Circle the following compounds that could potentially be purified by crystallization. - The compounds circled are solids therefore they could potentially be puri -
Ohio State CHEM 254
Chapter 7 Part 1. Provide the balanced reaction equations for the acid/base reactions below. Provide arrows that indicate electron movement. Provide the side of the equilibrium that is favored. Indicate which of the following reactions would be us -
Ohio State CHEM 254
Chapter 8 Part 1. Gas Chromatography. Answer the following questions about retention times of the following compounds. Given napthalene (boiling point = 218C), phenol (boiling point = 181.7C), and toluene (boiling point = 110.6C). a. List the order -
Ohio State CHEM 254
Chapter 9 Part 1. Thin Layer Chromatography. Given the following TLC plate containing a mixture of naphthalene and benzoic acid. Answer the following questions: Solvent System = 1:1 Hexanes: Ethyl Acetate a) Which compound is the top spot and -
Ohio State CHEM 254
Chapter 10 1. Draw all of the constitutional isomers formed in each E2 reaction and predict the major product using the Zaitsev rule. Br Na O H + MAJOR Br NaOH + MAJOR (CH3)3CONa + + Cl MAJOR Br Br Br (CH -
Ohio State CHEM 254
Chapter 11 O OH O O O O + Part 1. Anhydrides. Provide all of the organic products for the following reactions. O OH O O O CH3CH2OH O O + HO O O O OH OH O (1 equiv) OH O O + HO O O O OH HO O O O O O O + HO (Excess) O O OH O O O + HO O (Excess) -
Ohio State CHEM 254
Chapter 13 Part 1. Draw three additional resonance structures that show the distribution of electrons in the aromatic ring for each of the compounds shown below. Label the compounds as activated or deactivated toward electrophilic aromatic substitu -
Ohio State CHEM 254
Chapter 14 Part 1. Electrophilic Aromatic Substitution. Predict the product of the following electrophilic aromatic substitution reactions. O CH3 O O CH3 O Br2, FeBr3 Br Br Br Br2, FeBr3 Br Br Br Major CN -
Ohio State CHEM 254
Chapter 17 Mechanisms. Provide the mechanisms for the following esterification reactions. HO H O H2SO4 O H OH O HO H O H O O S O O H O HO H O H H O OH O O S O O H O O OH O OH O OH O O O S O O H O H O O OH OH OH HO OH O H OH O H O O S O O H O O O -
Ohio State CHEM 254
Chapter 18 Part 1. Predict the Product. Predict the major organic product for each of the following Grignard reactions. Assume excess Grignard in present for each reaction. O 1. CH3MgBr 2. H3O+ OH O 1. CH3CH2MgBr 2. H3O+ OH 1. O O 2. H3O+ MgBr ( -
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Ohio State CHEM 254
Callam 1/8 CHEM 254 WI -2009 Problem Set #1 IR Spectroscopy - KEY 1. Which of the indicated bonds absorbs at the higher frequency in an IR spectrum? a. O or OH C=O > C-O b. N or NH C=N > C-N c. H H or C-H sp2 > C-H sp3 Callam 2/8 CHEM 254 WI -2009 2. What -
Ohio State CHEM 254
Callam 1/8 CHEM 254- WI-2009 Problem Set #1 IR Spectroscopy 1. Which of the indicated bonds absorbs at the higher frequency in an IR spectrum? a. O OH or b. N or NH c. H H or Callam 2/8 CHEM 254- WI-2009 2. What major IR absorptions are present above 1500 -
Ohio State CHEM 254
Callam 1/12 CHEM 254- WI-2009 Problem Set #2 Mass Spectrometry and IR Spectroscopy - KEY Part 1. Mass Spectrometry 1. What molecular ion is expected for each of the following compounds? C8H16+ m/e: 112 (100.0%), 113 (8.8%) Cl O C6H6+ C7H14O+ m/e: 114 (100 -
Ohio State CHEM 254
Callam 1/7 CHEM 254- WI-2009 Problem Set #2 Mass Spectrometry and IR Spectroscopy Part 1. Mass Spectroscopy 1. For the following compounds: draw the molecular ion that is expected, list the m/z value and the approximate percentage of M+1 peak to be observ -
Ohio State CHEM 254
Callam 1/28 CHEM 254 WI - 2009 Problem Set #3 Nuclear Magnetic Resonance 1 Part 1. H Spectroscopy How many different types of proton are present in each compound? 5 1 a. 2 1 1 b. 2H 4 3 4 c. 5 3 O 1 Br 1 2 5 2 (CH3)3CC(CH3)3 d. 1 3 e. OH f. 1 3 1 1 1 1 3 -
Ohio State CHEM 254
Callam 1/19 CHEM 254 WI - 2009 Problem Set #3 Nuclear Magnetic Resonance Part 1. 1H Spectroscopy How many different types of protons are present in each compound? a. (CH3)3CH c. b. Br O d. g. (CH3)3CC(CH3)3 O e. h. OH f. O i. j. k. l. m. n. o. p. q. O OH -
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Ohio State CHEM 254
Callam Chem 254 CONCEPT QUESTIONS CH 11 SYNTHESIS OF ASPIRIN The Synthesis of Aspirin experiment produced an ester from the reaction of an alcohol with an anhydride. Based on the reaction we performed, pr -
Ohio State CHEM 254
Synthesis of Aspirin Cameron Trefny Mackenzie Schumer W/F 8:30 a.m. 430 CE February 10, 2012 Purpose: To synthesize Aspirin from salicylic acid and acetic anhydride in an acid catalyzed esterification reaction. Reaction Scheme: Procedure:1 A suspension of -
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Ohio State CHEM 254
Callam% CH\'254% WI\'2012% Exam%#1% 75%points% Recrystallization,/Extraction,/Distillation,/Gas/Chromatography/and/Infrared/Spectroscopy% % % Name%(PRINT)_% % I/have/neither/given/or/received/aid/on/this/exam./ (SIGN)_% % Lab%Time%(CIRCLE)% % 8:30%a.m.% 11: -
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Ohio State CHEM 254
Callam% CH\'254% WI\'2012% Exam%#2% 75%points% Dehydration,of,Alcohols,Thin,Layer,Chromatography,Synthesis,of,Aspirin,Electrophilic,Aromatic,Substitution,Mass, Spectrometry% % % Name%(PRINT)_% % I,have,neither,given,or,received,aid,on,this,exam., (SIGN)_% % -
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Ohio State CHEM 254
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Ohio State CHEM 254
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Ohio State CHEM 254
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Ohio State CHEM 254
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