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Caffeine has a distribution of 4.6 between water and dichloromethane. Calculate how much caffeine (I used 0.5283g of caffeine) is extracted per each 6ml dichloromethane extraction.
KEtones also undergo the aldo condensation, although a succesful reaction often requires "enhanced" conditions, since the addition involves an unfavorable equilibrium constant.
Calculate the mass of silver bromide that will produce 0.023 mol Na3[Ag(S2O3)2].Answer in units of g.
calculate the concentrations of all species in a .890 m sodium sulfite solution. the ionization constants for sulfurous acid are ka1= 1.4x10^-2 and ka2=6.3x10^-8
Calculate the mass/volume percent, % (m/v), for the solute in each of the following solutions. Express the answer using 2 sig figures.
Greg Corp. reportedrevenue of $1,100,000 in its accural basis income statement for the year ending June 30, 2007. Under the cash basis, gregg should report revenue of?
Use the van der Waals equation of state to calculate the pressure of 3.20 mol of Xe at 481 K in a 5.80-L vessel.
Assuming the density of a 5% acetic acid solution is 1.0 g/ml, determine the volume of the acetic acid solution necessary to neutralize 25.0 ml of .10M NaOH. Also record this calculation on your report sheet.
13When heated in a flame, sodium atoms emit light with a frequency of 5.09 × 1014 s-1. What is the wavelength of this radiation in nm? [Data: c = 2.998 x 108 m/s ]
Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. suppose 74 grams of octane is mixed with 148 grams of oxygen
Use VSEPR theory to predict the shape of each molecule: a) CF3; b) NCl3; c) SCl2; d) CS2; e) BFCl2.
how many grams of potassium permanganate are needed to decolorize 1 gram of 2-pentene in basic solution?
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