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Calculate the molar solubility of calcium oxalate, CaC2O4, in a solution that has been buffered so that the pH is constant and equal to 4.00. The solubility product for calcum oxalate is 1.7 x 10-9. Oxalic acid, H2C2O4 is a diprotic acid with Ka1=5.60 x 10-2 and Ka2=5.42 x 10-5.
volume of 2.25 L at 278 K and 1.01 atm. Calculate the pressure when the volume is 1.95 L and the temperature is 303 K.
The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 x 10-3 min -1. How long will it take for a concentration of H2O2 to drop from .0200M to .0120 M
What products would you expect from reaction of 1-bromopropane with the reagent NAI? I believe this is a SN2 reaction
This buffer is to be prepared by mixing 25.0 mL of 0.1 M HCl with the correct mass of solid sodium acetate. You will determine the mass of solid sodium acetate needed.
the following amino acids are placed in an electric field between positive and negative poles. which will migrate the fastest toward the positive end of the electric field
AMines can be made by the reduction of nitriles, which in turn can be made from an alkyl halide. Draw the structures of a starting alkyl bromide and the intermediate nitrile that would be used in the synthesis
molecular orbital theory compare these species with regard to A. their magnetic character B. net number of pie bonds C. bond orber, and D. bond length
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 400.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid.
When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid. Assume water has a density of 1.00 g/cm3 at the temperature of the measurement.
Find the energy eigenstates for the system. Compute the normalization constant for these eigenstates. What is the boundary condition for this problem. What does this restrict the allowed energies of the system to be? e) What is the degeneracy of t..
A solution contains 9.87 (g) of dissolved silver. How many moles of potassium chloride must be added to the solution to completely precipitate all of the silver?
A cube of osmium metal 1.500cm on a side has a mass of 76.31g at 25°C. Calculate the mass of 0.1500L of benzene at this temperature.
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