A 0:005 M aqueous solution of a certain substance absorbs 15% of the incident light in a Lambert-Beer law cell of path length 2 cm. Calculate the concentration required for 90% absorption of the incident light.

A 0:005 M aqueous solution of a certain substance absorbs 15% of the i

1.	A 0:005 M aqueous solution of a certain substance absorbs 15% of the incident light in a Lambert-Beer law cell of path length 2 cm. Calculate the concentration required for 90% absorption of the incident light.
Answer» The ABSORBANCE has a logarithmic RELATIONSHIP to the transmittance; with an absorbance of 0 corresponding to a transmittance of 100% and an absorbance of 1 corresponding to 10% transmittance....