For example, a pH of 3 is ten times more acidic than a pH of 4 and 100 times (10 times 10) more acidic than a pH value of 5. So, a strong acid may have a pH of 1-2, while a strong base may have a pH of 13-14.
http://chemistry.about.com/od/ph/f/What-Does-Ph-Stand-For.htm
Fluorocarbons are colorless and have high density, up to over twice that of water. They are not miscible with most organic solvents (e.g., ethanol, acetone, ethyl acetate and chloroform), but are miscible with some hydrocarbons (e.g., hexane in some cases).
https://en.wikipedia.org/wiki/Fluorocarbon
Prior to that, fluorocarbons were prepared by reaction of fluorine with the hydrocarbon, i.e., direct fluorination. Because C-C bonds are readily cleaved by fluorine, direct fluorination mainly affords smaller perfluorocarbons, such as tetrafluoromethane, hexafluoroethane, and octafluoropropane.
https://en.wikipedia.org/wiki/Fluorocarbon
Here is the answer to the question and a look at the history of the pH scale. Answer: pH is the negative log of hydrogen ion concentration in a water-based solution. The term pH was first described by Danish biochemist Soeren Søren Peter Lauritz soerensen sørensen. in 1909
http://chemistry.about.com/od/ph/f/What-Does-Ph-Stand-For.htm
19 /PRNewswire/ -- The. Energy 50 is a ranking of the World's Largest Listed Firms in the Oil & Gas Industry that compete in a global and dynamic landscape. Latest PFC Energy 50 Released by PR Newswire. 1st Place, Training --. Ben McKandles, D Battery, 319th Field Artillery (D/319 FA), 173d Airborne (Abn) Brigade (Bde), checks the barrel of an M119A2 howitzer for obstructions during training at Grafenwoehr Training Area, Germany.
http://acronyms.thefreedictionary.com/PFC
Industrially, both steps are combined, for example in the manufacture of the Flutec range of fluorocarbons, using a vertical stirred bed reactor, with hydrocarbon introduced at the bottom, and fluorine introduced half way up the reactor. The fluorocarbon vapor is recovered from the top.
https://en.wikipedia.org/wiki/Fluorocarbon
Fluorocarbons, sometimes referred to as perfluorocarbons or PFCs, are, strictly speaking, organofluorine compounds with the formula C x F y, i.e. they contain only carbon and fluorine, though the terminology is not strictly followed.
https://en.wikipedia.org/wiki/Fluorocarbon
Perfluoroalkanes are very stable because of the strength of the carbon–fluorine bond, one of the strongest in organic chemistry.
https://en.wikipedia.org/wiki/Fluorocarbon
The pH scale is a logarithmic scale that usually runs from 1 to 14. Each whole pH value below 7 (the pH of pure water) is ten times more acidic than the higher value and each whole pH value above 7 is ten times less acidic than the one below it.
http://chemistry.about.com/od/ph/f/What-Does-Ph-Stand-For.htm
The term pH was first described by Danish biochemist Soeren Søren Peter Lauritz soerensen sørensen. pH 1909 ph is an abbreviation for power of hydrogen where p is short For the german word, for power Potenz and h is the element symbol. for hydrogen
http://chemistry.about.com/od/ph/f/What-Does-Ph-Stand-For.htm
what does pfcs stand for in chemistry
In chemistry, PFCS stands for Perfluorocarbons. PFCS stands for Perfluorocarbons in chemistry.