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Given that acetophenone is a meta- director, draw all three resonance structures for the carbocation intermediate that results from STEP 2 in the electrophilic aromatic substitution reaction when acetophenone reacts with Br2 in the presence of FeBr3. If you do not remember the structure of the benzene derivative, consult the index of your text.
Explain how the calculated formula of the hydrate would be changed if water from the air is absorbed by the hot dry sample as it cools.
Calculate the maximum number of grams of phosphorus trichloride that could be formed from 44.1 grams P subscribe 4.
If glass beads in the lab were replaced by a material with less surface area, will liquid seperation be better or worse. Why. Why should the recieveing flask be submersed under an ice bath when collecting isopropanol or acetone
a 5.00L air sample at a temperature of -50 degrees celsius has a pressure of 107 kpa. what will be the new pressure if the temperature is raised to 102 degrees celsius and the volume expands to 7.00L.
If a particular alloy is prepared by mixing 11.2 moles of copper with 1.5 moles of nickel, what is the mass percentage of nickel in the alloy
The iron content of an ore can be determined by a redox titration using K2Cr2O7 as the titrant. A sample of the ore is dissolved in concentrated HCl using Sn2+ to speed its dissolution by reducing Fe3+ to Fe2+.
HIn H+ + In- The following absorbance data were obtained for a 5.00 x 10-4 M solution of HIn in 0.1 M NaOH and 0.1 HCl. Measurements were made at a wavelength of 485 nm and 625 nm with 1.00 cm cell.
What metal occurs in a vast limestone deposits and combines with oxygen to form an oxide with a formula MO ?
Why is it important that your distillation apparatus to have a vent to atmospheric pressure and why do you put a boiling chip
calculate What mass of AlBr 3 is formed and calculate what mass of CCl 4 will be formed if 1.5 moles of CH 4 react with 1.4 moles of Cl?'
A voltaic cell is constructed with two Zn+2-Zn electrodes. The two cell compartments have [Zn+2]=5.00 M and [Zn+2]=1.00 x 10^-2 M, respectively. What is the standard emf of the cell?
A biochemical engineer isolates a bacterial gene fragment and dissolves a 19.6 mg sample of the material in enough water to make 37.9 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
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