A 9.86 x 10 M sample of compound X in a solvent has an absorbance of 0.349 at 528 nm in a 1.000 cm cuvette. The solvent alone has an absorbance of 0.051. What is the molar absorptivity of compound X? Mem A different sample of compound X in the same solvent has an absorbance of 0.467 at 528 nm when measurcd with the same cuvette. What is the concentration of this second sample? mol X IX = L.

Question 3: In the following table, you are requested to add the name of the technique that will suit the mentioned purpose. Fill in the table with the best deposition technique to accomplish the proposed task? Task Depositing a metallic film with the highest uniformity Highly directional deposition Deposition of a metal and dielectric films in a one chamber without breaking the vacuum Deposition of a polymeric film from a solution Depositing a dielectric material with large grain size and very low impurity Proposed technique

Consider doping of silicon with gallium.Assume that the diffusion coefficient of gallium in Si at 1100℃ is 7*10-13 cm2/s.calculate the concentration of Ga at depth of 2.0 micrometer if the surface concentration of Ga is 1023 atom s/cm3.The diffusion times are 1,2 and 3 hours.

17.29 An engineered tissue system consists of a slice of cell mass immobilized on a scaffold measuring 5 cm in length and 0.5 cm in thickness. The top face of the tissue scaffold is exposed to water, dissolved oxygen, and organic nutrients maintained at 30 C. The bottom face of the tissue is thermally insulated. At present, the specific oxygen consumption of the tissue mass is 0.5 mmol O₂/cm³cells-hr, and from respiration energetics, the energy released by respiration is 468 J/mmol O₂ consumed. We are interested in knowing the temperature at the bottom face of the tissue next to the insulated boundary. If this temperature remains below 37 C, the tissue will not die. The thermal conductivity of the tissue scaffold is k = 0.6 W/m. K. a. Using the information given predict the temperature profile within the tissue slab the slab. b. C. What is the heat generated per unit volume of tissue? Estimate the temperature at x =L (the insulated boundary).