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Medical Laboratory Science Review - Harr – Chemistry |81 questions with correct answers
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Which formula correctly describes the relationship between absorbance and %T ? A. A = 2 - log %T B. A = log 1/T C. A = -log T D. All of these options Answer D Absorbance is proportional to the inverse log of transmittance. A = -log T = log 1/T Multiplying the numerator and denominator by 100 gives: A = log (100/100 X T) 100 X T = %T, substituting %T for 100 X T gives: A = log 100/%T A = log 100 - log %T A = 2.0 - log %T For example, if %T = 10.0, then: A = 2.0 - log 10.0 log 10.0 = 1.0 A = 2.0-1.0 = 1.0 A solution that has a transmittance of 1.0 %T would have an absorbance of:
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Medical Laboratory Science
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Medical Laboratory Science
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medical laboratory science review harr – chemist
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