What is the empirical formula of this organic compound conta

What is the empirical formula of this organic compound containing fluorine, carbon, hydrogen and oxygen?A sharp smelling clear liquid containing fluorine, carbon, hydrogen and oxygen is analysed. 5.850g of the liquid was reacted with calcium nitrate and produced 2.925g of calcium fluoride. A second 5.850g sample was heated in the absence of air, producing 1.800g of pure carbon, and 2.520L of water vapour at 148.5kPa and 127˚C. The remainder of the compound was oxygen. Calculate the empirical formula.Then 1.56g of the compound was dissolved in about 10 millilitres of water and placed in a flask. Phenolphthalein was added. 1.25molL^-1 sodium hydroxide was placed in a burette and titrated. At the end point the volume of sodium hydroxide was 16.00ml. Assume the reaction is a 1:1 ratio. What is the actual formula for the compound?

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