Mole Valley Predators F.C. League. After six unsuccessful seasons in the Combined Counties League, they merged with two youth teams, Predators FC and Fetcham Park United, and changed their name to Mole Valley Predators in 2005. Finishing mid-table in 2005–06, they subsequently left the league to concentrate on youth football. The youth team was later renamed Leatherhead Predators after an association with Leatherhead F.C., and more recently became known as Leatherhead Y.F.C. Mole Valley Predators F.C. Mole Valley Predators Football Club was an English football club based in Leatherhead, Surrey. The club played at Combined Counties Football League level, and also featured in the
Mole fraction the phenomenon of diffusion. Mole fraction In chemistry, the mole fraction or molar fraction (x) is defined as the amount of a constituent (expressed in moles), "n", divided by the total amount of all constituents in a mixture (also expressed in moles), "n": The sum of all the mole fractions is equal to 1: The same concept expressed with a denominator of 100 is the mole percent or molar percentage or molar proportion (mol%). The mole fraction is also called the amount fraction. It is identical to the number fraction, which is defined as the number of molecules of a