Q: Please answer the question at the bottom, Thanks. A: Enantiomer is a pair of the chiral molecule which are the mirror images of each other. For a molecul A: A colloidal solution can be coagulated if an electrolyte is added to it. Hardy Schulze rule gives th Q: Define the structures of threonine? A: Amino acids An organic molecule that contains the functional groups amino group and carboxyl group.
Q: What is the pH of a 0. Q: Give reagents and conditions for the following reaction. A: A palladium-catalyst reaction in which the carbon group of hexabromobenzene is coupled with a carbon Q: Explain what is observed when : i A beam of light is passed through a colloidal solution. There would be scattering of the beam of light when it is passed through a colloidal solution whi Q: Given pKa values for ionizable groups from Table Q: Do I do Lewis structure 1st.
Then do formal charges. Q: Why is the Born-Haber cycle used to determine the lattice energies of ionic compounds? Born Haber's cycle: This approach helps to calculate the lattice energy released in the formation Q: For item please refer to the problem on the picture.
Please answer and choose the correct answer Q: A weak monoprotic acid is titrated with 0. It requires What is the solubility of CO2 in a A: where p is the partial pressure of the solute in the gas above the solution, c is the concentration A solution of Cr1N A: A This solution is termed as supersaturated in which solution contains a greater amount of solute Q: a 2R,3S -2,3-dibromohexane, draw any planes of symmetry.
Q: Emso A gas whose presure , volume and temperoture ave k Nlms 0. A: Firstly calculate the mass of gas and calculate the heat. Apply chargle's law for volume calculation Q: Complete each of the following equations by adding the missing species:. A: In radioactive reactions, the products can be obtained by adding or subtracting the mass numbers and Q: Compound W shows stereoisomerism.
Why are such isomers formed in approximately equimolar quantities A: Given : Two pathways of formation of compound W. To find : Reason for equimolar quantity of product Q: Which ketone in each pair is more reactive? Q: Which term is a measurement of heat? Connotations are the emotions that we associate with a given word.
While most of the time, these are fixed i. First we have to understand that connotations is the emotional and imaginative association surrounding a word.
Out of all the options shown above the one that best applies to connotations is answer choice B They are always subjective. In other words it depends on the person. Your email address will not be published.
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When the diazonium ion couples with dimethylaniline, why is the para position favored? Is this only due to steric factors or do electronic factors such as ortho-para directivity play a role here too? In particular, I suspect ortho-para electronic factors might be significant because some of the resonance structures have a cation directly next to the electron-donating group.
Both steric and electronic factors play a role in this reaction. Resonance structures such as those shown below favor electrophilic attack the diazonium ion is an electrophile at the ortho and para positions. Since diazonium coupling usually produces a majority of the para coupled product, steric factors must be playing a role as well. The somewhat bulky dimethylamino group does make it more difficult for an electrophile to approach the ortho position and the diazonium ion is relatively large.
These two steric factors combine to reduce the amount of the ortho isomer and the para isomer predominates. Sign up to join this community. The best answers are voted up and rise to the top.
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