Question

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HOnnenor 1 Calculate ne WRigat percent of KCI ina 291809 Sample of baclz mixture tnat consis+5 soley of And KCI Pouthine precipitakon of in the sammple yiclds 4.1316q Ag. Chloride X= moles KC EBoles Ba Cl (XN)(moles Aaci) =gof Agc. (xlmolar mss KCI)tDnor uss BaCl2) = ass of samole ESTRY ATIVE

Answer 1

Kel moloof Bodr Molacalar we 子4-5 (39r 35 5) af Kc Moleculor weiqu of Bad, -313-+ 2x35 5) - 208 3 45 d) weight af the sompla shoulo be So, acording the question-> 74 5 t 208 2 39780 Agoim,froodion with Ag Kcl Kt 2Ag Back t Ba + 2Age wi give 50, mle kel Malacular weiaut cf Aacl= CI07.8 t 35'5) = 143 3 of the Agc poecipitatad = t 43.3 ( t 2) 8 433x 286 6 to he question Accedang 143.3x +286 6 47315 43 3 x 745 426 7979 29849 39 352 49675 - 10675 85

(7415065/g476 O o087 38 Putinj the value af jin D 2.9780 74.5 O 008739x 208 3) > O 015543 KCL mul d o15543 eigut Kel (d015543 74"5) gaoms 15 7 gta ms

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