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It is concerned with the He+ atom and its wave functions.The ground state wave function is:?1s = 2(z/a0)^ (3/2) * e^ (-r/a0)and the first excited state wave function is instead:?2s= (1/(2* ?2)) (Z/a0) ^3/2 * ((2-r)/a0)* e^ (-r/2a0)In case you do not remember,r(n,l) = a0n^2/Z * (1+ (1/2)(1- l(l+1)/n))1. Calculate the energy associated with each of the three wavefunctions of lowest energy, in order of increasing energy
2. Provide an expression for the average distance from the nuclues for the 2s and 2p orbitals
30.0 mL of 0.500 M KOH are needed to neutralize 10.0 mL of HCl of unknown concentration.HCl + KOH ? KCl +H2O Show your work.
Important information about Conceptual Organic chemistry and What chemical tests might be used to distinguish between pentanal and 2- pentanone; between benzyl alcohol and diphenylmethanol?
The density of a 0.0122 M KMnO4 is 1.037 g/mL. Suppose 26.35 g of 0.0122 M KMnO4 are required to titrate 1.072 g of a household H2O2 solution. Except for answers to (a) and (e), use scientific notation. Do not include units, just enter numerical v..
In a .050 M HCl solution an indicator is not all in acid form. For methyl orange, what percentage of the indicator is in each form
It has a pressure of 46.3 mmHg and 24.6 C (degrees). what is the molecular formula og the compound
What is the effect of dissolved soap (soapy water v. plain water) on the pattern of diffusion of blue dye in water?
when 1.3584 g of sodium acetate trihydrate was mixed into 100.0 cm3nbspof 0.2000 m hclaq at 25degc in a solution
What mass of carbon dioxide will be produced when 29.9 g of butane reacts with an excess of oxygen in the following reaction
What minimum mass of succimer (C4H6O4S2) (in mg) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 25 micrograms/deciliter.
"Soft" ionization techniques can introduce multiple charges onto a molecule to produce multiply-charged species. Show a possible spectrum for an 1800 Da peptide protonated by chemical ionizatoin with up to 4 charges. Be sure to label the axes and ..
A second 1.0 mL sample is spiked with 2.0 microliters of a 1000 ppb Pb2+ standard and diluted to 5.0 mL, yielding an Sspike of 0.4. Determine the concentration of Pb2+ in the original sample of blood.
Calculate the maximum number of moles and grams of H2S that can form when 195 g aluminum sulfide reacts with 106 g water.
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