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Treatment of the following stereoisomer of 1-bromo-1,2-diphenylpropane with sodium ethoxide in ethanol gives a single stereoisomer of 1,2-diphenylpropene. Draw the E2 elimination product of the reaction. Take into account that the starting stereochemistry affects the resulting double bond stereochemistry
Calculate the pressure (in atm) of 16.80 mol of CO2 gas in a 3.00 L vessel at 153 k with the Van der Waals equation (a=3.592 L^2 * atm/mol^2 and b=0.0427 L/mol for CO2)
what is the pH of the resulting solution after the nuetralization reaction (that is after the required amount of NaOH is added to the lactic acid)? Use a Ka of .00014 for lactic acid and assume that the solid was dissolved in 15.0 mL of distilled ..
A sample of blood plasma occupies .550 dm3 at 0 degrees C and 1.03 bar, and is compressed isothermally by 0.57 per cent by being subjected to a constant external pressure of 95.2 bar. Calculate w.
The shielding of electrons gives rise to an effective nuclear charge,Zeff, which explains why boron is larger than oxygen. Estimate the approximate Zeff felt by a valence electron of boron and oxygen, respectively
What mass of potassium benzoate is needed to prepare one liter of a 0.135M solution of potassium benzoate?
If you mix 50mL of 0.34M HCN with 100mL of 0.17M KOH what is the pH of the resulting solution. (Ka=4.0 x 10^-10)
Calculate the expectation value for the kinetic energy of the H atom with the electron in 2s orbital. Compare your result with total energy
Purine biosynthesis is allowed to take place in the presence of [N15]aspartate, and the newly synthesized GTP and ATP are isolated. What positions are labeled in the two nucleotides?
She weighed an empty 4.3 L bulb, then filled it with the gas at 1.60atm and 23.0 C and weighed it again. The difference in mass was 7.9g . Identify the gas.
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million? Round to the nearest tenth. Don't forget the units
Calculate the mass of vapour present in a room of volume 250 meter cube that contains air at a temperature of 23 degree centigrade on a day when the relative humidity is 53%.
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