mixture of KBr and NaBr weighing 0.563 g was treated with aqueous `AgNO_(3)` and all the bromide ion was recovered as 0.975 g of pure AgBr. What fraction of total mass is NaBr in the sample ?

mixture of KBr and NaBr weighing 0.563 g was treated with aqueous AgNO_(3) and all the bromide ion was recovered as 0.975 g of pure AgBr. What fraction of total mass is KBr in the sample ?

1.00 g of EuCl_(2) , is treated with excess of aqueous AgNO_(3) and all the chlorine is recovered as 1.29 g of AgCl. Calculate the atomic weight of Eu. (Cl = 35.5, Ag = 108)

A sample of a mixture of CaCl_2 and NaCl weighing 4.22 g was treated to precipitate all the Ca as CaCO_3 which was then heated at quantitatively converted to 0.959 g of CaO. Calculated CaCl_2% in the mixture

A sample of a mixture of CaCI2 and NaCI weighing 4.22 g was treated to precipitate all the Ca as CaCO_3 , which was then heated and quantitatively converted to 0.959 g of CaO. Calculate CaCI_2% in the mixture.