3.CCl2F2isaFreonwhichisagaseouscompoundusedinrefrigeration.Whatpercentofthiscompoundisfromcarbon? 4.Whichhasahigherpercentagebymassofiron? iron(III)nitrate iron(II)sulfate EmpiricalFormulas 1.Benzoicacidisacompoundusedasafoodpreservative.Thecompoundcontains68.8%C,4.95%Hand26.2%Obymass. A.Whatisitsempirical...