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Explain How to calculate initial moles of H2O2 assuming 3.00%wt/vol stock solution with 10.0mL of 0.10 M KI, 15.0 mL di H20, and 5.0 ml 3% H2O2?
The optical rotation of a sample composed only (S)-1-amino-1-phenylethane is determined. [a]obs = -157.0 degrees. If the cell path length was 1.0 dm and the concentration of (S)-1-amino-1-phenylethan in the sample was 5.2 g/mL
Determine the density of Pb if the length of one of the sides of the cubic unit cell, s, is 4.9505 angrstroms and Pb packs into a FCC unit cell. units in g/cm^3
Write a mechanism for the reaction of an alkyl halide with alcoholic silver nitrate which depicts the type of substitution which occurs. Explain how this mechanism accounts for the relative rate of reactivity of primary, secondary and tertiary hal..
Why must all the lines in the hydrogen spectrum between 2500 A and 7000 A belong to the Balmer series
suppose that you added 35.0 g of water at 99.50 degrees celsius to a calorimeter containing 150 g of water at 23.0
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively. If 7.50 mol benzene is mixed with 6.64 mol toluene
At a certain temperature and pressure 2.8 L of N2 reacts with 4.2 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure.
calculate the theroretical yield of c2h5cl when 123 g of c2h6 reacts with 220 g of cl2 assuming that c2h6 and cl2 react
What length of a cylindrical piece of tungsten wire having a radius of 3.71 mm has a mass of 61.3 g? The density of tungsten is 19.25 g/cm3.
If the Km of carbonic anhydrase for the above reaction is 1.8 mM, what is the catalytic efficiency of this enzyme under these conditions? The units are s-1M-1.
a since the pressure available for expansion of the arterioles is only 1mmhg what does the surface tension need to be
calculate the specific heat capacity of zinc given that a 65.5g sample loses 2008J of heat when cooled from 100.0 degrees celcius to 21.1 degrees celcius.
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