The prep team for our course has prepared a 0.1 mg/mL stock of BPB solution. To get an absorbance reading near 1 on our spectrophotometer, we need to make a 12.5 µg/mL solution.

Question-3. A piece of titanium (Ti) sheet in a thickness of 5 mm was exposed to a nitrogen-rich gas atmosphere on one side and a nitrogen-deficient atmosphere on the other side at 850 °C. After having reached steady-state, the metal sheet was quickly cooled to room temperature. The nitrogen concentrations at the two surfaces were determined to be 0.02 and 0.0018 wt%. The densities for nitrogen (N) and Ti are 0.808 g/cm³ and 4.5 g/cm³, respectively. Answer the following questions: (a) Convert the nitrogen concentrations from weight percent to kilograms per meter cubed. (b) Compute the diffusion coefficient if the diffusion flux is 2.58 × 10-6 kg/m²-s.

Explain two separation techniques how may be feasible for Neon vs Air. One can be an industrial approach other can be a laboratory-scale method.

Why is it important to indicate the wavelength of light used in your experimental data and on the Beer's Law plot?

Active corrosion Passivation potential Flade potential Passivity 0, evolution breakdown of film Q2: Name the above diagram and explain in detail the four regions in the curve

in a 2-hour carburizing treatment, what temperature is required to obtain a 0.5% concentration of carbon at a depth of 0.5 mm below the surface of steel with a carbon concentration of 0.2%?considers that the inert gas used is enriched with carbon atoms at a concentration of 1.10% and that iron has an fcc structure