important is it to embed the 'emitter recoilness emission of a Y-ray. How The Mossbauer effect depends upon the Calculate the recoil energy_of a free 57 Fe nuclcus in a bulky, rigid, crystal lattice? 57 Calculate the recoil energy of a free atom. (mc² = 5 × 101ºev, E, =14-4 keV) 2
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- Condisering the following schematic representation, def,ne the mechanism involved in Cu-Ni diffusion and major parameters that affect this process?Quickly plezz!! The levigating agent role in Suppositories manufacturing ??Equations for the chemiluminescence determination of SO2 are given on page 383. Derive an expression for the relationship between the concentration of SO2 in a sample, the luminescence intensity, and the equilibrium constant for the first reaction.
- A compound Y (150.0 g/mol) in a 1.00 cm quartz cell has an extinction coefficient (ε) of 23,150 at λmax=235 nm. What is the energy absorbed by the compound at the maximum of the peak? Note that hc=1.98644586×10−25J*m. Report your answer in KJ/mole to the correct number of significant figures. Do not include the units in your answer. Please write out steps, will rate. Thank you.Can u explain the answers pls thank u1.A compound Y (150.0 g/mol) in a 1.00 cm quartz cell has an extinction coefficient (ε) of 23,150 at λmax=235 nm. What is the energy absorbed by the compound at the maximum of the peak? Note that hc=1.98644586×10−25J*m. Report your answer in KJ/mole to the correct number of significant figures. Do not include the units in your answer 2.In general, we want to have absortions less than or equal to 1. What percentage of the incident light is transmitted when absorption is 1? Report your answer to the nearest whole number. 3.An ethanol solution of 3.5 mg/100 ml of compound Y (150.0 g/mol) in a 1.00 cm quartz cell has an absorbance (A) of 0.972 at λmax=235 nm. What is its molar extinction coefficient? Report your answer to the correct number of significant figures.
- What transition (d–d charge transfer) is responsible for the dark blue color of [Cu(phen)2]BF4? Why does the dissolution [Cu(phen)2]BF4 of in dichloromethane (DCM) result in a dark orange solution? Justify your answer.What is the maximum number of unpaired delectrons that anatom or ion can possess? Give an example of an atom and an ionthat have this number.Confirm that the following CO adsorption data on activated carbon at 273 Kfollow the Langmuir or Freundlich isotherm and determine the volumecorresponding to the complete coverage of the surface.
- Suppose you have collected the X-ray powder diffraction pattern of tetragonal BaTiO3 at roomtemperature using copper radiation (λ=1.54 Å) and identified the lattice planes corresponding to thepeaks at each 2θ positions, as shown in the table below. 2θ (°) (hkl) Intensity (%)22.05 (001) 12.022.28 (100) 25.031.45 (101) 100.031.65 (110) 100.038.82 (111) 46.044.86 (002) 12.045.39 (200) 37.050.60 (102) 6.050.98 (201) 8.051.3 (210) 7.056.01 (112) 15.056.3 (211) 12.065.75 (202) 35.0 Determine:a) the d-spacing of the four most intense reflections; b) the lattice parameters a, b and c of the unit cell..A. w: Mn= 25, Co= 27, Ni= 28, Zn= 30 ------------ Complex K3[Mn(C204)3] Highly distorted. O Low distorted. O not distorted. O The magnetic moment of the -------------- complex [Ni(en)3]CI2 is * 0Bm 2.8 BM 1.8 BM O OO0O0 3.8 BMIron nanoparticles were produced by the evaporation method and their average sizes are estimated 25,50, 90 and 120 nm using the laser particle analyzer. Assuming that the resultant particles are strain freeand the peak broadening detected in the measurement with Cu-K radiation (λ=0.154 nm) arises onlyfrom variation of size of the crystallites, estimate the peak width (the value of FWHM) of the (110) plane.