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Select the statement below that describes the magnetic environment of hydrogens bonded to the sp2 hybrid carbons of pi systems relative to alkyl hydrogens bonded to sp3 hybrid carbons:
A) Are deshielded and resonate downfieldB) Are shielded and resonate upfieldC) Are shielded and resonate downfieldD) Are deshielded and resonate upfield
say you removed an ice cube at -10 ordmc weighing 36 g from your freezer. now you place the ice cube in a 90 g sample
What volume is need to give 2L/min flow for 19200min with a tank pressure of 2500psi? Assuming Ideal behavior.
chlorobutenedioic acids dehydrochlorinate to give acetylene dicarboxylic acid. The Z reacts about 50 times faster
What will the pH of the equivalence point be when 10.00 mL of .0200M Carbonic acid is fully titrated to the 2nd end point using .05 M NaOH?
Determine the amount of work that must be supplied to the compressor and the temperature of the gas leaving the compressor b) Determine the heat load on the heat exchanger
If this NH4Cl solution is assumed to be ideal and is completely dissociated into ions, calculate the vapor pressure of this solution at 29.0 °C. (The vapor pressure of pure water at 29 °C is 30.0 mm Hg.)
if a 10. m3 volume of air acting as an ideal gas is at a pressure of 760 mm and a temperature of 27 degrees celsius is
the mass of a cube of iron is 434 g. iron has a density of 7.87 gcm3. what is the mass of a cube of lead that has the
An unknown organic compound is mixed with 0.5190 g of naphthalene crystals to give a mixture having a total mass of 0.5959 g. The mixture is heated until the naphthalene melts and the unknown substance dissolves.
Which of the following is not true regarding social development?
Calculate the specific rotation of the compound. A sample of 150 mg of an organic compound is dissolved in 7.5 ml of water. The solution is paced in a 20-cm polarimeter tube and the rotation measured in a polarimeter
Calculate the mass percent (m/m) for the solute in each of the following solutions: Express the answer using 2 sig figures.
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