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Write down and explain the feature(s) in the Schrödinger equation that lead to the "electron correlation problem". Next, explain the approximation(s) that lead to the introduction of effective nuclear charge (Z Effective). Be sure to define effective nuclear charge in your discussion and explain the role and physical significance of the shielding (screening) constant (s).
The corresponding nitrogen-containing anion NO4^3, is unstable but can be prepared by reacting sodium nitrate with sodium oxide at 300 degrees C. Draw Lewis structures for each anion. What are the differences in bonding between these ions
Amstop Company issues $20,000,000 of 10-year, 9% bonds on March 1, 2007 at 97 plus accrued interest. The bonds are dated January 1, 2007, and pay interest on June 30 and December 31. What is the total cash received on the issue date?
10 g of potassium chlorate, KClO3 is decomposed producing 3.915576 g of oxygen gas and 6.083363 g of potassium chloride, KCl: 2KClO3 + heat -> 2KCl + 3O2. Based on this information, what is the GMW of the oxygen produce
There is an uncontaminated background well (Well 2) with Chloride levels at 100mg/Liter and arsenic at 0.1mg/Liter. Well 3 is located down gradient of the contaminated area with a Chloride level of 300mg/liter. If the Arsenic concentration for Wel..
The reaction A->B follows first-order kinetics with a half-life of 21.7 hours. If the concentration of A is 0.023 M after 48 hours, what is the initial concentration of A?
determine what is the longest possible wavelength of light that could ionize an atom of bismuth if the first ionization
Copper (II) oxide can be reduced to copper metal by heating in a stream of hydrogen gas:CuO(s) +H2(g) -heat--> Cu(s) +H2O(g)
A reaction has the following rate law Rate = k[A][B]2. In experiment 1, the concentrations of A and B are both 0.10 mol L-1; in experiment 2, the concentrations are both 0.30 mol L-1. If the temperature stays constant, what is the value of the rat..
A potiential measurement in a paddy field acquiesce a reading of -278 mV verses the standard calomel reference electrode. Explain what is the pE value for this soil
A gaseous mixture of NO2 and N2O4 is in equilibrium. If the concentration of N2)4 is 5.3 x 10^-5 M, what is the concentration of NO2? 2 NO2 (g) ==> N2O4 (g) Kc = 170
The empirical formula for hydride of silicon is SiH4, and it's central atom is silicon. Based on this information, you would expect the empirical
The addition of 5.00g of a compound to 250g of naphthalene lowered the freezing point of the solvent by 0.780K. Calculate the molar mass of the compound.
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