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Organic Chemistry Bonding


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

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

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)

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

Compound or Isomer

For each of the (attached) compounds, identify them as 1) the same or 2) constitutional isomers or 3) geometric isomers or 4) enantiomers or 5) different compounds that are not isomers.

Momsaccharides/products, linkage, benedicts, acetal etc

Please see attached for diagram ... Questions: Will this disaccharide give a positive Benedict's test? Why or why not? Does this structure have a hemiacetal, hemiketal, acetal, or ketal system? Locate it on the drawing & give appropriate label. Upon hydrolysis with the appropriate enzyme, what will be the products?

Physical Properties

Hi. We were given a practice sheet with review questions. Can you briefly tell me why on each so I can apply it on test? Thanks. Higher solubility - Butanedioic acid or Butanal Higher mp - 2,3-dihydroxy propanal or Pentanal Lower mp - Sodium octanoate or Octanoic acid Lower solubility - 2-hexanone or 2-hexanol

Groups on a benzene ring

What determines whether a group on a benzene ring will be activating or deactivating and ortho para or meta directing?

Common Acids - Naming and Defining

How can you know that HNO3 is nitric acid and HNO2 is nitrous acid? How do you know the difference in endings? Is there a formula for this to tell the difference? They are so closely related. I see this is common when naming acids. How can you tell as well, that HCLO is chloric acid. I would think it was hydrochloric acid.


I am having some trouble explaining why the attached molecule is an otho-para director although a weak deactivator. I believe it is because of resonance forms, but that is as far as I have gotten. Thanks,

Drawing the Structure of a Compound

1. Draw the structure of Compound A based on its formula and proton NMR. The integration of the peaks from left to right is 5:2:1. Compound A, MF C7H8O 2. Draw the structure of Compound B. Hint: The IR spectrum shows a strong bond at 1725 cm^-1. 3. Draw the structure of Compound C. Hint: The IR spectrum shows no peaks nea

Cyclic Alkyne reaction with KMnO4 and O3

Molecule 1: 5 carbon ring, carbon 1 has a carbon attached which also is triple bonded to another carbon (this end carbon just has a H attached.) There is also a double bond between carbons 1 and 2 in the ring. Predict the product when this reacts with KMnO4 in H30+. Molecule 2: I have a 6 carbon ring. C1 has a C which is

Determine the Functional Group

For problems 1 through 3, determine the functional group from the following spectra. There is only one functional group per compound. Determine whether the compound is aromatic or not aromatic. Follow the instructions attached.

Aromatic Compounds and Cycloheptatrienyl

Explain the following: a.) The cycloheptatrienyl anion is antiaromatic, whereas the cyclononatetraenyl anion is planar (in spite of the angle stain involved) and appears to be aromatic. b.) Although [16] annulene is not aromatic, it adds two electrons readily to form an aromatic dianion.

Retrosynthesis of a Molecule

Provide a retrosynthetic analysis and the forward synthsis of the following molecule, starting from commercially available compounds. The retrosynthesis should clearly identify the synthons and their synthetic equivalents. Functional group interconversions and bond disconnections should be clearly indicated where appropriate. Th

Electrophilic Addition - Mechanism and Product

Show the mechanism and product of the following electrophilic addition to a conjugated diene using curved arrows to show bond-making and bond-breaking process. (See attachement for full question)

Material purified from safflower oil

Provide me with your exact logic used to get the answer. A mysterious material was purified from safflower oil (hint: full of fatty acids). Upon ozonolysis it gave the following compounds in their respective molar ratios. Draw the structure of the mysterious material and give me its common name. 3 moles CHOCH2CHO 1 mol

Synthesizing 3-hexanone

I am trying to synthesize 3-hexanone from acetylene and ethyl bromide. Any help with how this can be done?

Structure for 2 products

I need help determining how the products below might be formed and what their structures might look like: Br2(over Arrow) 2-butyne --------->C4H6Br2(28%yld) + C6H12Br2O2(65%yld) CH3OH(under arrow) Thanks for any help!

PH and Biochemistry

I need some help to get me started: Determine the weight in grams of sodium dihydrogen phosphate (M.W.138.01) and disodium hydrogen phosphate (M.W 141.98) needed to prepare 1L of a standard buffer at pH 7.00, with a total phosphate concentration of 0.100M. Okay I know that the pKa is going to be 6.86. I am therefore going

Deduce the structure and give the name.

I am pretty sure that I have figured out the problem, just one peice is stumping me. Do you think that you can help me figure out the structure and name. What I have may possibly be right. Question: Analyze the data given in each of the problems below, deduce the structure and give the name. A fishy-smelling liquid with

Ion Shapes

Predict the shape of the following ions: a) NO3 - b) NO2 +