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Question: Can an electron be confined to the volume of a nucleus by the Coulomb attraction between the electron and the nuclear charge?
To answer this, find the approximate average kinetic and potential energies of the electron.
a. Take the nuclear charge to be Z = 100 and estimate the average distance between electron and nuclear charge to be ≈ 1 fm. (This approximation concentrates all the nuclear charge into a tiny sphere of radius less than 1 fm; this is not a good approximation but it won't change the answer.) Calculate the average potential energy of the electron.
b. Estimating the uncertainty Δx to be ≈ 1fm, evaluate the average kinetic energy.
c. Use your answers to (a) and (b) to answer the question.
Calculate the pressure (in atm) of 16.80 mol of CO2 gas in a 3.00 L vessel at 153 k with the Van der Waals equation (a=3.592 L^2 * atm/mol^2 and b=0.0427 L/mol for CO2)
Suggest a reasonable synthetic strategy for the synthesis of 4-bromo-2-nitro-benzoic acid from o-nitrotoluene
the ionization of water must be considered in order to calculate the pH of this acidic solution.)
Determine heat of neutralization per mole of water formed for the reaction of NaOH and HCl with the following data
Conversion for a Specific Product, Indicate the reaction conditions you would employ to accomplish the following
Calculate the composition of the following two buffer solutions. Each buffer is to begin with 0.10M ethanolamine (pka 9.50) and is also to contain acetic acid (pka 4.76). One buffer (buffer A) is to be PH 5.00, the other buffer (Buffer B) 9.26.
the pH of a solution is defined as a measure of its hydrogen ion concentration. which of the following correctly defines the relationship between the pH and the hydrogen ion concentration of a solution
a 40.0 mass percent solution of ethylene glycol c2h6o2 in water has a density1.0514gml. find the molality
Provide analysis of the IR spectrum in terms of product absorbances and similarities/differences from the IR spectra of 4-iodophenol and phenylboronic acid.
the reaction between ammonia and dinitrogen trioxide to givenitrogen gas and water nh3g n2o3g ltgt n2g h2og has a dh
A weak acid (HA) has a pKa value of 3.00. At what pH is [HA] = [A-]? What is the predominant species of HA at pH 2.25? What is the predominant species of HA at pH 3.90?
AgCl precipitates first. What is the concentration of the Ag+ remaining in solution when CuCl begins to precipitate? For AgCl, pKsp = 9.74. and for CuCl, pKsp = 6.76.
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