Question

Consider this reaction involving an unknown element X. F. + 2 XBr —Br, + 2 XF When 2.900 g of XBr reacts, 1.234 g of Br, is produced. Calculate the molar mass of X, and then identify its element symbol. molar mass of X: g/mol elem

Answer 1

be element gmal ef mas molar let Cuiva 21009 X Br= Macs rmass reacted X BY of Moles Moleculas mass ै ४३. 2900 Simi lasly of O.0013 1.234 Bas produced= Moles L60 F22x B Heaction Lequaaton from balonced the we teact of witt 1 nal terat See ot to mol X BY nol Produce of Brz of XF. mol 2 and 2x Mole of rearted Males B produud So 2.400 O.0013 OO154 2.9 40 168 3 2 Ort 80 LO8.3 Sor molas mass af loagloel Molas Maes 0fA is Lrglnol eplaneat and does teu's single eactroa

ef 1 o adlattbn sat state he५e dat on tate stable most tere aleo of of L08 39lmal is Sor molas maes i's ELemeat Ag (sves)

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