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a. Depict resonance structures of the electron donation of the NH2 group to the benzene ring in aniline. Appropriately use curved arrows as well as clearly indicate the + and - charges.
b. Describe why the benzene ring is additionally reactive towards electrophilic aromatic substitutions as well as why the electrophile will predominately go to the ortho also para positions.
Make a drawing that illustrates how the diethylammonium ion might interact with tetrachlorocuprate(II), what are the hazards with this combination
Write a complete mechanism of reaction of 2,4-dinitrophenylhydrazine with acetaldehyde. (show electron lone pairs and formal charges, and show electron flow using curved arrows)
The value of Ksp for silver carbonate, Ag^2CO^3, is 8.10 X 10^-12 . Calculate the solubility of Ag^2CO^3 in grams per liter.
How many milliliters of 0.121 M H2SO4 are needed to neutralize 0.220g of NaOH? If 42.5mL of 0.220 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the solution?
strontium-90 and radon-222 both pose serious health risks. sr-90 decay by beta particle production and has a relatively
arrange the following in order of increasing vapor
the solubility of oxygen in water is 14.74mgl at 0 celcius and 7.03mgl at 35 celcius. estimate the solubility at 50
Predict the relative order of Rf values for the amino acids in the following mixture: Ser, Lys, Leu, Val, and Ala. Assume that the separation was carried out on paper chromatography
You have just prepared a solution by weighing 20 g of sucrose, transferring it to a 1-liter volumetric flak, and adding water to the line. Calculate the concentration of the sucrose solution in terms of mM, mg/mL, and % (wt/vol).
What is the concentration of KMnO4 when you mix 2 mL of .160 M KMnO4 with 10 mL of .250 M oxalic acid. Assuming that it took 120 s to observe the color change in the reaction, what is the rate of the reaction
Calculate the change in copper entropy associated with cooling one mole of copper over the following two ranges. Use the full form of Cp (if Cp is needed).
what is the amount of heat kj required if 64.0 kg of h2o is heated from 25degc to 85degc? 200.0 g al c 0.900 at
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