Analytical Chemistry
Beginning of paper
is the branch of chemistry principally concerned
with determining the chemical composition of materials, which may be solids,
liquids, gases, pure elements, compounds, or complex mixtures. In addition,
chemical analysis can characterize materials but determining their molecular
structures and mea ....
Middle of paper
.... Identification of an unknown substance is
accomplished when a known one is found with identical properties. If none is
found, the uknown substance must be a newly identified chemical. Tests should
not use up excessive amounts of a material to be identified. Most chemical
methods of qualitative analysis require a very small amount of the sample.
Advance instrumental techniques often use less than one millionth of a gram. An
example of this is mass spectrometry.
Quantitative chemical an ....
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Page count: 5 (approximately 250 words per page)
