Tri(pentafluorophenyl)borane, commonly known by its acronym BARF, is frequently used to initiate polymerization of ethylene or propylene in the presence of a catalytic transition metal compound. It is composed of 42.23% C, 55.66% F, and the balance, B, by mass. What is the formula of BARF? If a 2.251 gram sample of BARF is dissolved in 347.0 ml of solution, the concentration is .01267M. Using these data, what is the molecular formula for BARF? Describe the hybridization of the boron atom. How many pi electrons would be found on this molecule?
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