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For cadmium atom utilize the Bohr model for hydrogen-like atoms make first order estimates of the energies expected for the Kα, Kβ, Lα, and Lβ x-ray fluorescence transitions as well as the ionization energy of an electron in the K shell. Report the energies in keV (1J=6.242 x 1015keV).
Give a step by step mechanism for the reaction of the following: a. salicylic acid with acetic anhydride/ phosphoric acid b. salicylic acid with methanol/hydrochloric acid
Why does the processing of a crystalline material like nylon require more critical thermal control as opposed to an amorphous material like ABS
For the reaction PCl5-> PCl3+Cl2 kp= 26.03 at 800K. calculate the equilibrium partial pressure for the reactant and product if the initial pressures are PPCl5= .54 atm and PPCl3= .37 atm.
Calculate the pH of a dilute solution that contains a molar ratio of potassium acetate to acetic acid (pKa = 4.76) of 5:1? Enter answers with 2 decimal points.
What length of column is necessary to produce a resolution of 1.0 between two solute peaks. The distribution coefficients for the two solutes are 1.83 and 1.97
Calculate the wavelength of the electromagnetic radiation required to excite an electron from the ground state to the level with n = 5 in a one-dimensional box 39.8 pm in length.
silicon carbide which has the emperical formula sic melts at 2830 deg c. and is nearly as hard as boron nitride and
In Europe, gasoline efficiency is measured in km/l . If your car's gas mileage is 40.0 mi/gal, how many liters of gasoline would you need to buy to complete a 142 km trip in Europe
How do you find the theoretical mol of HC2H3O2 if you have 33.0 g of acetaldehyde and 16.5 g of oxygen and only produced 18.02 g of acetic acid 2CH3CHO + O2--> 2HC2H3O2
for the reaction below kp 1.16 at 800oc. caco3snbsprarr caos co2gif a 20.0 g sample of caco3 is put into a 10.0 l
a perfect gas undergoes isothermal compression which reduces its volume by 2.20 L. the final pressure and volume of the gas are 3.78x10^3 torr and 4.65 L, respectively
calculate the ph of a solution that is made by combining 125 ml of 0.050 M hydrofluoric acid with 50 mL of 0.10 M sodium fluoride
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