Showyour work, include units, and report the correct number of significant figures for allcalculations.1. According to Planck's equation, the energy of a monochromatic light beam depends onitsor2. A photon can interact with an electron in a molecule, atom or ion, in which the electronis elevated from aelectronic state to astate.3. Because electronic states are quantized, absorption of quanta always occurs at a character-istic4. The amount of light (or the number of photons) absorbed depends on several factors,including how many electrons undergo the electronic transition. In a solution, this dependson the optical path and theof the solution.5. A calibration plot for a particular absorbing species is constructed according to the Beer-Lambert's law and the equation of the best-fit straight line is y = 9.41x. What is theconcentration of a solution of the same species if its absorbance is measured to be 0.603?

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Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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A monoprotic weak acid, HA, dissociates in water according to the reaction HA(aq) = H+ (aq) + A¯(aq) The equilibrium concentrations of the reactants and products are [HA] = 0.220 M, [H+] = 3.00 × 10−4 M, and [A¯] = 3.00 × 10−4 M. Calculate the value of pKa for the acid HA. pKa =
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