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Organic Chemistry Bonding

different resonance forms of two structures

Please see attached...I chose c The two structures shown are: a. constitutional isomers b. enantiomers c. different resonance forms of the same species. d. difference conformations of the same species. e. 5. diastereomers

Alkyl Halide Solvolysis

Choose the starting reagents: benzyl chloride and a solvent (water). Note the color of the solution. Return to the lab and place the flask on the stir plate. No other set up is required. You will monitor the reaction on the pull down TV and with TLC. Run a TLC sample before you start the reaction. Some reactants may not s

Organic Chemistry Bonding Properties

I need some help with these three questions on organic chemistry bonding: 13. Why it is important that any aldehyde used in Witting reaction be free of carboxylic acid impurities? 14. Explain why the C=C stretching mode gives rise to a rather weak IR band in 1-methylcyclohexane, while in its isomer, methylenecyclohexene,

What is the structure of the hydrocarbon?

A hydrocarbon was found to have a molecular weight of 80-85. A 10.02 mg sample took up 8.40 mL of H2 gas at 0 degrees C and 760 mm pressure. Ozonolysis yielded only two compounds shown in the attached .jpg. What is the structure of the hydrocarbon? See attached file for full problem description.

Calculate the degree of unsaturation in C4H6.

1. a. Calculate the degree of unsaturation in C4H6. b. Draw at least 4 iosmers with this formula (C4H6). 2. a. Explain why cis dichloroethene has a boiling point of 60 degrees C while trans - dichloroethen has a boiling point of 48 degrees C. b. Include drawings of the structures with dipoles in your answer.

Anti Addition

I need to paraphrase this "As a bromine molecule approaches perpendicular to the negatively charged pi cloud of the carbon-carbon double bond, its bonding electrons are repelled away from the bromine atom nearer the double bond, leaving it with a partial positive charge. As the positively charged bromine penetrates the pi cloud,

Calculations for Positive Iodoform Test

Explain the fact that even though dibenzoylmethane (C6H5COCH2COC6H5) is not a methyl ketone, it gives a positive iodoform test when treated with the NaOH and I2.

Isomers of dimethylcyclohexanediol

Here is my question. I am working through this and some other problems, and want to compare what I do against what someone who knows a lot more than me on this subject, does. Please don't do this problem if you are 1. Planning on copying and pasting something from a website (yes, I've had people do that to me here) that

Alkene Hydration

In an experiment you combine 4-methyl-2-pentene and water, in the lab you setup the experiment using a a heater, condenser and N2 gas and add the reagent H2SO4, the product formed is 2-methyl-2-pentanol. Which of the following terms would be used in a description of the mechanism of this reaction? - Tertiary carbanion - 2-me

Hydroboration reaction experiments and Markovnikov's rule

In one experiment you combine 1-hexene which is reacted with H2SO4 with water as the solvent and the compound produced is 2-hexanol, and in another experiment you have 1-Methylcyclohexene which reacts with H2SO4 in water to produce 1-methylcyclohexanol. Do the reactions in these experiments conform to E2 elimination, Markovniko

Hydroboration reaction of 1-hexene and H2SO4 with water

In an experiment that is performed you use 1-hexene and is reacted with H2SO4 with water as the solvent. The product formed is 2-hexanol, is this an example of 1,4 addition, or proceeds via a carbanion, or is an example of electrophillic addition, or results in sp2 hybridized carbon being transformed into a sp hybridized carbon

Fats and oils

Examine the label of any vegetable oils, solid shortening, margarine, or butter you might have on hand. Identify the oil or fat and report the level of saturated, mono-unsaturated, and polyunsaturated fats that are listed on the label. Try to rank them from most saturated to most unsaturated. Check if the label mentions anything

Organic Chemistry Structure and Stability

1. In the bromination of n-butane, the secondary hydrogens are 20 times more reactive than the primary hydrogens. What is the product ratio of 1-bromobutane to 2-bromobutane? a. 6:4 b. 1:20 c.93:7 d. 7:93 2. Rank the free radicals (I-III) shown below in order of decreasing stability (ie, most stable to least s

Chemistry

1. An energy maximum in a reaction-energy diagram would be labeled as which of the following? a. Reactant b. Product c. Transition State d. Intermediate 2. Which of the following best describes the shape of the methyl free radical? a. linear b, planar c, tetrahedral d. pyramidal

5 Chemistry Problems on alkanes

1. Which of the following correctly lists the following isomeric alkanes in order of increasing boiling point? n-hexane, 2,3-dimethylbutane, 2-methylpentane a. n-hexane < 2-methylpentane < 2,3- dimethylbutane b. 2-methylpentane < 2,3-dimethylbutane < n-hexane c. 2,3-dimethylbutane < 2-methylpentane < n-hexane d. n-hexa

Assorted Chemistry Problems

1. Draw the structure of bicyclo [3.2.0] heptane. 2. Consider the following compounds: CH3-CH2-CH2-CH2-CH3 CH3-CH2-CH2-NH-CH3 CH3-CH2CH2-CH2OH Predict their relative boiling points (rank from low (1) to (3)). Explain answer in terms of the intermolecular forces involved. 3. Draw a three-dimensional structure of CH3C

Academic Approach to Chemistry

1. The C-O-C bond angle (degees) in the compound CH3-O-CH3 is closest to a. 90 b. 109 c. 120 d. 180 2. Which of the following molecules would be expected to be MOST water soluble? a. CH3-CH2-CH2-CH2-CH3 b. CH3-CH2-O-CH2-CH3 c. HOCH2-CH2-CH2OH d. ClCH2-CH2-CH2Cl 3. The relationship between CH3CH2OH and HOCH2C

The number of different constitutional isomers

1. The number of different constitutional isomers that can be drawn for C2H4Br2 is equal to a.1 b. 2 c.3 d. 4 2. The order of boiling points of the simple alkanes CH4, C2H6, and C3H8 is a. CH4 < C2H6< C3H8 b. CH4 > C2H6> C3H8 c. C2H6 < CH4 < C3H8 d. CH4 < C2H6 > C3H8 3.Which of the following statements about

Newman projections and conformations

(See attached file for full problem description) 1. Draw Newman Projections constructed by looking down the indicated carbon-carbon bond in the following molecule and make a graph of energy versus dihedral angle. 2. Predict the most stable conformation of hexane. Draw a line wedge formula for this confirmation (hint: consi

Academic response to Chemistry

Which of the following structures contain atoms with a formal charge? Indicate the atom and the charge. Do any of the structures have a net (non-zero) charge? See attached for structures Describe the type of bonding that occurs in H-CH2-OH

Organic Chemistry Bonding - Reactions

I have a problem with reactions. CH3-CH2-C-CH3 + (O) THERE IS AN -OH AND A METHYL ATTACHED TO THE SINGLED OUT -C And also the same problem, but reacting with H+

Organic Chemistry Bonding Elemental Analysis

1. A sample of unknown Y is subjected to elemental analysis. The following percentages by weight are found to be: C 40.0% H 6.7% O remainder of % by weight The molar mass is found to be 60.0 g A. Calculate the empirical formula (show work) B. What is the molecular formula of unknown Y. (Include r

mechanism and synthesis

A.) Write a complete mechanism for the addition of diethyl malonate to ethanal in the presence of base to form a beta-hydroxy ester. B.) Outline a sythensis that forms at least on C - C bond for each of the following compounds: 1.) CH3CH2CH2CH2CH2CH=CHCO2H 2.) CH3CH2CH2CH=C(CN)(CO2CH2CH3)

Diels-Alder Reaction and Product

Compounds containing carbon-carbon triple bond undergo the Diels-Alder reaction. Formulate the product formed by the reaction of (E,E)-1,4-dipjhenyl-1-3-butadiene with diethyl acetylenedicarboxylate. Show reaction.

Organic Chemistry

Organic chemistry structural problem with for Methyl Ketone: In organic chemistry, there is a ketone structure that has the carbon bonded twice with the oxygen(C=O)with two components on the side...the question is how or where do I attach the methyl(CH3) on to this Ketone structure? (See attachment for diagram)

stability of enols of beta-dicarbonyl compounds

1.) Chlorotrimethylsilane reacts with enolate anions to form stable ethers. For example (see reaction attached) Assuming that the reaction is run under equilibrium conditions predict which of the silyl enol ethers below is formed in the largest amount and why? 2.) There are two reasons why the enols of beta-dicarbonyl compoun

Conversion for a Specific Product

Indicate the reaction conditions you would employ to accomplish the following: a. Conversion of tert-butyl chloride to 2-methylpropene to maximize the yield of the elimination product over the substitution product. b. The conversion of tert-butylchloride to tert-butyl ethyl ether to insure the highest possible yield of the eth