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What is the vapor pressure of SiCl4 (in mm Hg) at 23.5 C? The vapor pressure of SiCl4 is 100 mm Hg at 5.4 C and Delta H vap = 30.2 kJ / mol.
Use the following data to plot the inflection points for the heating curve of 1 mole of solid octane at its melting point, -56.8 degrees C. The first point should be at -56.8 and the last point should be at 150 degrees celcius.
While preparing oxalate buffer technician by mistake added 0.1 M of CaC2O4. (pKsp = 7.9) to 0.2 M solution of oxalic acid
Using a flow diagram, show the separation of a mixture containing p-bromoacetanilide, N-cyclopentyl-N-methyl-N-propylamine (N means the group is attached to the nitrogen of the amine) and m-nitrophenol. Specify the organic solvent and aqueous
Identify three radioactive elements or reactions of different types and write the nuclear reaction for each element.
Draw a flow chart showing the procedure and the observations to be expected at each step with each of the possible cations.
Show the stereochemistry of the products you would expect when (2S,3S)-2,3-epoxypentane undergoes acid catalyzed hydrolosis.
An electron is con?ned to a one-dimensional box of length L. It falls from the second energy level to the ground state, and releases a photon with a wavelength of 322 nm.
Consider the titration of 30.0mL of 0.050M NH3 with 0.025M HCl. Calculate the pH after the following volumes of titrate have added.
The flask was then shaken until the solution was uniform. A 60.0 mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution?
Mehtanol-water solutions behave as essentially ideal solutions (the activity coefficients which measure deviation from ideality are equal to or close to one).
magnesium sulphate MgSO4 has an observed osmotic pressure =7.6 atm at the temperature of twenty five degree celsius. Determine the observed van't Hoff factor?
If the pressure of a gas is 39.18 atm in a piston, what is the final pressure, in atm, if the volume of the piston is multiplied by 4 at a constant temperature?
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