2007-09-26 03:43:37 · 7 answers · asked by Jordan D 1 in Science & Mathematics ➔ Chemistry
Symbols and numbers
2007-09-26 03:45:46 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The molecular formula reflects the exact number of atoms that compose a molecule.The empirical formula of a molecule is the simplest integer ratio of the chemical elements that constitute the compound.For example, in their pure forms, water is always composed of a 2:1 ratio of hydrogen to oxygen,
The empirical formula is often the same as the molecular formula but not always. For example the molecule acetylene has molecular formula C2H2, but the simplest integer ratio of elements is CH.
2007-09-26 11:40:03 · answer #2 · answered by jaya 2 · 0⤊ 0⤋
A molecular formula lists all the different kinds of atoms which make up a molecule, and also how many of each kind of atom is present. Empirical formulas just list the total number of atoms in no particular sequence. Chemical formulas group atoms together into units, and this helps to determine the structure of the molecule. For example, the empirical formula of ehtanol is "C2H6O" and the chemical formula is CH3CH2OH. "Structural formula" is sometimes used to mean "chemical formula". In the world of working chemistry, the structural formula is sometimes condensed and only shows the group of interest. In this context, ethanol would be "C2H5OH".
2007-09-26 10:52:09 · answer #3 · answered by Roger S 7 · 1⤊ 0⤋
Molecular formula is the chemical formula of a compound giving the exact number of each type of atom in a covalently bonded molecule.
2007-09-26 10:52:13 · answer #4 · answered by Gene C 2 · 0⤊ 0⤋
It is the formula of the actual molecule. The molecularformula of benzene is C6H6. Its empirical formula is CH.
2007-09-26 10:49:22 · answer #5 · answered by steve_geo1 7 · 0⤊ 0⤋
A condensed form of the molecule involving only letters representing atoms or groups of atoms and numbers.
2007-09-26 10:57:16 · answer #6 · answered by ag_iitkgp 7 · 0⤊ 0⤋
please stop posting the same question, it's very annoying.
2007-09-26 10:51:02 · answer #7 · answered by scientific_boy3434 5 · 1⤊ 0⤋