(9) Internal Revenue Code means the Internal Revenue Code of 1986 in effect for the federal tax year beginning on January 1, 2007, not including any changes made by federal law after that date, and any regulations adopted under that code applicable to that period.
Absorbance is the negative logarithm of the percent transmittance divided by 100. A spectrophotometer can be set to measure either the percent transmittance or the absorbance of a solution. In lab, you will be using a spectrophotometer called the Spectronic 20 or Spec 20 to measure absorbance.
To absorb is to take in or suck up like a sponge. If you don't hear your mother calling because you are reading, you could say you were absorbed in the book. If your parents buy groceries for a party you are throwing and don't make you pay, you could say that they decided to absorb the cost of the food. Young minds absorb information easily. The word, absorbent, describes something that is capable of absorbing something else.