Encyclopedia > Empirical formula

  Article Content

Empirical formula

In chemistry, the empirical formula of a chemical is a simple expression of the relative number of each type of atom (element) in it. An empirical formula makes no reference to isomerism or structure. The term empirical refers to the process of elemental analysis[?], an analytical technique used to determine the relative percent composition of a pure chemical substance by element.

For example, hexane could have a chemical formula of CH3CH2CH2CH2CH2CH3, implying that it has a straight chain structure. However the empirical formula for the same molecule would be C6H14.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article

... - 3rd century - 4th century Decades: 190s 200s 210s 220s 230s - 240s - 250s 260s 270s 280s 290s Years: 237 238 239 240 241 - 242 - 243 244 245 246 ...

This page was created in 81.4 ms