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
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
Can you please explain the molecular bonding of hydrocortisone. How many functional groups and what are they? I need the explanation of the actual chemical structure and the chemistry behind the structure.
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
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
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 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)
Why sugar burns rapidly with ignited but shows no reaction under normal conditions (ie a sugar bowl)
Why is sugar stable under standard conditions. In contrast to the high stability of sugar in daily use it burns rapidly when ignited without any 'booster' like sulphur or alkali nitrates.
What determines whether a group on a benzene ring will be activating or deactivating and ortho para or meta directing?
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
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
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
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
Vitamin B12 ia an interesting biomolecule. It is important to know about its structure and properties.
What is the molecular structure of Vitamin B12 and how is it important in our life.
Lidocaine is thought to bind to receptors in its methylated form. identify in writting the atoms or groups in the compound that could be involved in its binding to a receptor via- hydrogen bonding (1 example) an ionic interaction give the 2 types of functional groups that need to be present in the receptor s
Draw the abbreviated structural formula of the products of the complete hydrolysis of lidocain. Identify any new functional groups naming them clearly.
1. The presence of nitrogen in an MS spectrum produces an odd numbered molecular ion. Indicate which of these four spectra shows presence of sulfur, chlorine, bromine, iodine or nitrogen in the molecule. Suggest a molecular formula for the nitrogen-containing compound. You may indicate the relevant fragments on the spectrum. Ple
In the attached file is the structure of the organic molecule you need to name for this assignment. Your task is to name the given organic molecule using IUPAC (International Union of Pure and Applied Chemistry) rules. Please make sure you answer the all of the following: -What is the parent chain? -How do you indicate
Attached is the IR, NMR and Mass spec of a compound included is the formula molecular weight. Write a structure consistent with the data and draw a molecular ion. I have circled the OH Peak.
I recently did an experiment where the addition of bromine to trans-cinnamic acid gives a dibromide with two stereocenters (chiral centers). Thus, there were four stereoisomers possible (see figures on page 136 on attachment). According to the melting points of my product, I ended up with the racemic mixture (2R,3S) and (2S,