Introduction to Spectrochemical Methods

Question

Convert the accompanying transmittance data to

absorbances.

*(a) 27.2%

Answer 1

First you need to get rid of percents, converting them to a fraction or a decimal

T = 27.2% = 0.272

Then you need to apply the formula connecting Absorbance to transmittance

A = - log T

Finally use your calculator to find the value

A = - log T = - log 0.272 = 0.565