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Illustrate the resonance structure of the most stable carbocation intermediate possible that results from step 2 of an electrophilicaromatic substitution reaction when tert-butylbenzeneencounters bromine in the presence of iron(III) bromide.
In the determination of the density of a cylinder of aluminum, it was necessary to measure the volume of the sample. The diameter of the cylinder was 38.2 mm and the length of the cylinder was 15.5 mm. What was the volume of the aluminum cylinder ..
Calculate the pH of a solution prepared by adding 20.0 mL of 0.100 M HCl to 80.0 mL of a buffer that is comprised of 0.25 M C2H5NH2 and 0.25 M C2H5NH3Cl. Kb of C2H5NH2 = 9.5 x 10-4
A concentration cell has the same kinds of half-cells, for example Cu?CuSO4(aq), but has a nonzero emf due to differences in CuSO4 molalities. Explain how it is possible for the galvanic cell Cu(s)?CuSO4(aq)?Cu(s), that contains only one CuSO4 sol..
the chloroform would remain as liquid in the flask after equilibrium is established between liquid and vapor chloroform? (the vapor pressure of chloroform at 20 degrees C is 0.208 atm)
The viscosity of the broth is 1.5 cp, the particle density is 15 g/liter and the specific cake resistance (a) is 8.5x1010 cm/g. The diameter of the filter drum is 1.25 m and it length is 1.5 m. Calculate the required pressure drop across the filte..
You are fortunate to land a research position with Dr. Xavier Wray. Your first day in the lab the good doctor asks you to make a liter of 0.1 M citrate buffer pH 3.5 that you will need for the big extract procedure he will show you how to do after..
Nickel crystallizes with the face-centered cubic unit cell. The radius of a nickel atom is 124pm . Edge Length=351 pm. Calculate the density of a nickel in g/cm3.
If 101 g of CaO and 261 g of NH4Cl are mixed, what is the maximum possible yield of NH3?What mass of the excess reactant remains after the maximum amount of ammonia has been formed?
treatment of 1.385 g of an unknown metal m with an excess of aqueous hcl evolved a gas that was found to have a volume
Brine is a heavily salted solution used for pickeling. What tests could be used to identify the ions present? What should uoi see
HClO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.031 M in NaClO
What is benzoin condensation and what are the results of it and the uses of this reaction and a detailed assignment of it
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