Why different molecules have different absorbance wavelengths (nm)? Please answer shorty at your own words. Answer should be to the point.
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Why different molecules have different absorbance wavelengths (nm)? Please answer shorty at your own words. Answer should be to the point.
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- List two situations when you would not be able to use the UV-Vis absorbance at 280 nm to determine a protein’s concentration.A student accidentally added sodium hydroxide (NaOH) to their LB/AMP/ARA total protein sample. Would the sample have fluorescence (glow in the dark)? Why or why not? Briefly justify your answer.Would a sample solution that has a high absorbance reading, have a low or a high concentration
- When measuring the absorbance of methylene blue solution containing corn starch, how would corn starch affect the absorbance of the solution if it is not completely filtered out? Explain. (Don't just say "it affects" but explain it increases/decreases the absorbance. )Isoelectric focusing is used to separate …………….. based on their ................ A. salts, solubility B. nucleic acid, size C. proteins, charge D. proteins, size (molecular mass) E. molecules, densityUsing my chart can you help me with this question. The tests we used were qualitative; they allowed us to determine if a biological molecule was present or absent. In contrast, what type of information would a quantitative test provide?
- Define the following: The polarizability - Polar molecules - Nonpolar molecules - Induced dipoles - Ferroelectric materials.Cell membranes consist mainly of ________ and ________. a. lipids; carbohydrates b. phospholipids; proteins c. lipids; carbohydrates d. phospholipids; ECMPhospholipids will spontaneously form bubbles of bi-layer when put into water. Why do they do this? Why is this shape particularly energetically favorable?