Astudent uses visible spectrophotometry to determine the concentration of cocl2(aq) in a sample solution. first the student prepares a set of cocl2(aq) solutions of known concentration. then the student uses a spectrophotometer to determine the absorbance of each of the standard solutions at a wavelength of 510nm and constructs a standard curve. finally, the student determines the absorbance of the sample of unknown concentration. a wavelength of 510nm corresponds to an approximate frequency of 6×1014s−1. what is the approximate energy of one photon of this light? 9×1047j.

The approximate energy of one photon of this light  is ;

Given that :

wavelength of 510nm ≈ frequency of

Energy of photon ( E ) = hv =   ---- ( 1 )

where;

h = Planck's constant =

c =

β = light wavelength =

v = light frequency

Insert given values into equation ( 1 )

E =

Hence we can conclude that approximate energy of one photon of this light is  

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The energy of the photon will be

The energy of photon,

where,

h- plank scale =

c-

-  wavelength = 510nm

Put the values in the formula

Hence, we can conclude that the energy of the photon will be

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right

explanation:

thats how its supposed to be