[ Chemistry ] Open Question : What is the predicted absorbance of this solution at 413 nm (λmax) when read in the Shimadzu spectrophotometers in lab?

You have a solution of 1 ml of murine neuroglobin (mNgb) that is 2.82 mg/ml according to a Bradford assay. The molar extinction coefficient at 413 nm of mNgb (ε413) is 82.1 mM-1 cm-1 and its molecular weight is 17, 600 Da). What is the predicted absorbance of this solution at 413 nm (λmax) when…

[ Chemistry ] Open Question : What is the threshold wavelength (in nm) for the onset of the photoelectric effect?

What is the threshold wavelength (in nm) for the onset of the photoelectric effect? The binding energy of an electron to a metal surface is (1.78×10^2) kJ/mol. Pay attention to significant figures. Use scientific notation. Do not enter units with your answer. Note: Your answer is assumed to be reduced to the highest power possible.