-2 . What is the relationship between (a) at sorbance and transmittance? (b) ab sorptivity a and molar absorptivity e?

(a) The relationship between absorbance and transmittance is given by the Beer-Lambert law. The absorbance (A) is related to the transmittance (T) by the equation:<br /><br />\[ A = -\log(T) \]<br /><br />where A is the absorbance and T is the transmittance, which is the ratio of the intensity of light passing through a sample to the intensity of light incident on the sample.<br /><br />(b) Absorptivity (α) and molar absorptivity (ε) are related by the equation:<br /><br />\[ \alpha = \epsilon \cdot b \]<br /><br />where α is the absorptivity, ε is the molar absorptivity, and b is the path length of the light through the sample. Molar absorptivity (ε) is a constant that depends on the nature of the absorbing substance and the wavelength of the incident light. Absorptivity (α) is a measure of the fraction of incident light that is absorbed by the sample.