Question

24 ) Which of the following relationships between absorbance and % transmittance
is incorrect?
a) A=log10 100/%T
b) A=2-log10 % T
c) A=logio 1/%T
d) None of these​

Answer 1

Answer:

your answer is option c

Explanation:

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Answer 2

d) None of these

The amount of radiation absorbed can be measured in a variety of ways.  

• Transmittance= $\frac{P}{P_{0} }$

• % Transmittance, %T = 100 T

• Absorbance = $log_{10}$ $\frac{P}{P_{0} }$
• Absorbance = $log_{10}$ $\frac{1}{T}$
• Absorbance =$log_{10}$ $\frac{100 }{T}$
• Absorbance = 2 -$log_{10}$ %T  

When all light passes through a solution without absorption,  

• Absorbance is zero,  
• Percent transmittance is 100 percent

When all of the light is absorbed,  

• Absorption is infinite.
• % transmittance becomes 0  

According to Beer-Lambert's law, absorbance is proportional to concentration and length.

A=ebc

Where,

• A is absorbance  
• P is pressure
• e is the molar absorptivity in L mol-1 cm-1 units.
• The sample's path length of the cuvette in which the sample is enclosed, is b. This measurement will be expressed in cm.
• c is the compound's concentration in solution, it's unit is mol/L.