Question

Calculate the solubility at 25 °C of CuBr in pure water and in a 0.0190 M CoBr solution. You'll find K Round both of your answers to 2 significant digits. solubility in pure water: solubility in 0.0190 M CoBr 5olution: X

Answer 1

Awwer Selubl: product t Kar Br 6.27 x o-9 Let ts Molar Solubliy C B Cur) 6-27Xo- (s) (s) 7.92 지0~5 mol/L Solukliy= molar Solublity o1 CuBr Molav mai ot CuBr -7.42 x1d ~ mol 3. 449g/ moj L Selubolity in pure uoater CoB In Co Br 2Br 2x0.0190 M 0.이190 M 003 8 M Br- Concen tatton of It givej

+Bre CuT CuBr O.02P O Tntal Eauilibrum (s) (0.028+s) 6.27 ylo- Sinee ksp S ee o.038 So s (o.38) 6.11X0-9 Solublity molar Solub1? y 1N3.4v98mo 2.36109 2.4x IL Solublity in o.o1q0 M CoB Saluton 2.4 X lo g/