Definitions for molar attenuation coefficient
mo·lar at·ten·u·a·tion co·ef·fi·cient

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1. molar attenuation coefficient

   In chemistry, the molar absorption coefficient or molar attenuation coefficient is a measurement of how strongly a chemical species absorbs, and thereby attenuates, light at a given wavelength. It is an intrinsic property of the species. The SI unit of molar absorption coefficient is the square metre per mole (m2/mol), but in practice, quantities are usually expressed in terms of M−1⋅cm−1 or L⋅mol−1⋅cm−1 (the latter two units are both equal to 0.1 m2/mol). In older literature, the cm2/mol is sometimes used; 1 M−1⋅cm−1 equals 1000 cm2/mol. The molar absorption coefficient is also known as the molar extinction coefficient and molar absorptivity, but the use of these alternative terms has been discouraged by the IUPAC.

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1. Molar attenuation coefficient

   The molar attenuation coefficient is a measurement of how strongly a chemical species attenuates light at a given wavelength. It is an intrinsic property of the species. The SI unit of molar attenuation coefficient is the square metre per mole, but in practice, it is usually taken as the M−1⋅cm−1 or the L⋅mol−1⋅cm−1. In older literature, the cm²/mol is sometimes used with corresponding values 1,000 times larger. In practice these units are the same, with the difference being expression of volume in either cm³ or in L. The molar attenuation coefficient is also known as the molar extinction coefficient and molar absorptivity, but the use of these alternative terms has been discouraged by the IUPAC. The absorbance of a material that has only one attenuating species also depends on the pathlength and the concentration of the species, according to the Beer–Lambert law where ε is the molar attenuation coefficient of that material; c is the amount concentration of those species; ℓ is the pathlength. Different disciplines have different conventions as to whether absorbance is decadic or Napierian, i.e., defined with respect to the transmission via common logarithm or a natural logarithm.

How to pronounce molar attenuation coefficient?

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Numerology

1. Chaldean Numerology

   The numerical value of molar attenuation coefficient in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of molar attenuation coefficient in Pythagorean Numerology is: 6

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Molar_Attenuation_Coefficient
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=molar attenuation coefficient