After extracting NaOH two times from ether, does the amount of precipitate after adding HCl in both tubes indicate that all acid impurity has been removed from the ether layer containing the neutral compound?   There was a lot of precipitate in the first extraction and almost nothing in the second extraction after adding HCl to both.

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Applications of Molecular Spectroscopy

When light sources pass through the diffraction grating then light splits into different wavelengths. The light source produces two types of patterns that are shown as destructive and non-destructive. The light source is in the form of quanta that is quantitation.