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What Is The Exact Empirical Chemical Formula Of The Specific Compound Designated As Pcb?
PCB is a category of compounds. There is no exact formula, but many. Poly chlorinated biphenols have many chlorines substituted for the hydrogens originally on the phenol ring. Phenol is C6H5OH, a ringed compound with a -OH. Biphenols would be 2 phenol rings attached together.
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June 28th, 2009 at 11:57 pm
PCB refers to a class of compounds (not a specific compound) that are called PolyChlorinated Biphenyls.
Biphenyl is 2 benzene rings joined together. The molecular formula for biphenyl is C12H10. In PCBs, Hydrogen atoms are replaced by Chlorine atoms so the general formula would be C12H(10-x)Clx, where ‘x’ = the number of chlorine atoms. For example, if 4 chlorine atoms replaced 4 hydrogen atoms, the formula would be C12H6Cl4.
Since an empirical formula is the simple whole number ratio of atoms in a formula, the empirical formula in this case would be C6H3Cl2 and the molecular formula would be C12H6Cl4.
June 29th, 2009 at 12:27 am
C12HxCl(10-x)
There is no exact formula; the H and Cl subscripts can range from between 0 and 10, where the sum of both does not exceed 10, and H is never higher than 8.