(a)
Interpretation:
The percent transmittance of a solution needs to be defined.
Concept Introduction :
The percentage of light that gets absorbed when it is passing through solution is termed as transmittance. This light which passes through gets detected by the instrument.
(b)
Interpretation:
The neat solution needs to be explained.
Concept Introduction :
A
(c)
Interpretation:
The termhygroscopic needs to be explained.
Concept Introduction :
The phenomenon where the water molecules are attracted and held together via absorption or adsorption from its surrounding environment at room temperature is said to be hygroscopy.
(d)
Interpretation:
Thefixed thickness cell needs to be explained.
Concept Introduction :
There are specific methods for measurements for liquid samples of infra-red spectroscopy. For transmission methods, there are various types of cells used like liquid cell, fixed cell etc.
(e)
Interpretation:
Thefunctional group needs to be explained.
Concept Introduction :
There are specific substitutes or bonded molecules within the compound that is responsible for chemical reactions which are characteristic to it. These molecules or groups are called as
(f)
Interpretation:
Thestretching vibrational mode needs to be explained.
Concept Introduction :
As per Heisenberg’s Uncertainty principle, all atoms in molecules are constantly in motion. The motion is commonly identified as translational, vibrational, and rotational.
(g)
Interpretation:
The bending vibrational mode needs to be explained.
Concept Introduction :
Heisenberg’s Uncertainty principle states that all atoms in molecules are constantly in motion. The motion of the atomsis commonly identified as translational, vibrational, and rotational.
(h)
Interpretation:
Thesuperimposibility (as applied in IR spectroscopy) needs to be explained.
Concept Introduction :
No two compounds can have the exact same IR spectrum. Also, IR spectrum is said to be the fingerprint of the compound. Most of the compounds have their unique fingerprints in the range of 1500cm-1.
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