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A Mixture Contained No Fluorine Compound Except Methyl Fluoroacetate, FCH2COOCH3

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A mixture contained no fluorine compound except methyl fluoroacetate, FCH2COOCH3 (molar mass = 92.1 g/mol. When chemically treated, all the fluorine was converted to CaF2 (molar mass = 78.1 g/mol) . The mass of CaF2 obtained was 12.1


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The middle income value when all the households in a given area are arranged from lowest to highest income; half of households earn more and half earn less than this amount.

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