A sample in a spectrophotometer gives a percent transmittance of 37.5 %. the absorbance of the sample is 0.425
Given that :
a percent transmittance = 37.5 %
The absorbance of the sample expression is given as :
Absorbance = - log (T)
where T = transmittance
Absorbance = - log ( percent transmittance / 100)
Absorbance = - log ( 37.5 / 100 )
Absorbance = - log (0.375 )
Absorbance = - ( -0.425 )
Absorbance = 0.425
Thus, the absorbance for the percent transmittance of 37.5 % is 0.425. the percent transmittance in the spectrophotometer is the percentage of light that passes through solution.
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