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The wavelength of light absorbed by rhodospin (Rhodopsin is the pigment in the retina rod cells responsible for vision, and it consists of a protein and the co-factor retinal. Retinal is a pi-conjugated molecule which absorbs light in the blue-green region of the visible spectrum, where photon absorption represents the first step in the visual process. Absorption of a photon results in retinal undergoing a transition from the ground -or lowest-energy state of the molecule to the first electronic excited state. ) provides a measure of the ground and excited state energy gap. Determine What is the difference in energy between the ground and excited state if the absorption spectrum of rhodopsin is centered at roughly 500. nm.? what is the probability of rhodopsin populating the first excited state At a physiological temperature of 37 degree Celsius?
A sample of water 53 g with a temperature of thirty six degree celsius is combined to 250 grams of H 2 O at 91 degree Celsius in an insulated container. Determine the final temperature after thermal equilibrium is reached?
Solving this question helps the student to understand how to find molecular formula using moles and mass and What is the molecular formula of this compound?
A woman requires taking ibuprofen twice daily in 625mg amount. Each pill in the bottle is 250 mg then determine the number of pills the woman requires to consume each time she needs 625mg dosage
What is the total electronic energy
Determine which ion will precipitate first and at what concentration of sulfate ion will the first precipitate begin to form?
What will be the resultant pressure when the stopcock is opened?
Dalton law of partial pressure - The partial pressure of oxygen is maintained at 0.20 atm at this depth
Compute the partial pressure of N2 at the surface of theH 2 O in mmHg. The Henry's law constant for nitrogen gas =1.3x 10^-3 mol/L x atm? at 25 degrees Celsius
This given reaction: 2 O3(g) -→ 3 O2(g) has an empirically determined rate law (with a single unimolecular event). Determine what is the observed rate If k =4.0 × 105s-1, [O2] = 0.2M and [O3] = 0.5 M?
using a sample of river water sample analyzed for total inorganic carbon ,The river pH= 7.1 and an inorganic C concentration of 6.97 mg C/L.c
what do you think Does it mean that their properties also differ from a classical model of matter?
Describe each reaction and provide the name of all the chemical formula involved for each number.
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