Question

What is the total concentration of all ions (the sum of their individual concentrations) in aqueous solutions of the following? • Hint: Each substance is an electrolyte that dissociates in water to produce ions. Use the link table of polyatomic ions if you do not recognize the polyatomic ion. For example, Na2SO4 -> 2Nal+ + SO42- when it dissolves, so a 1 M soln of Na2SO4 is 2M in Nal+ and 1M in SO42- and the total concentration of ions is 2 M + 1 M = 3M. 0.0680-M Naci 0.0120-M Na2SO4 0.0120-M K2Cr207

Answer 1

solutions :- (10.0680 M wale Since wall Na tú : Sovat] = 0.0680 m & [ci] = 0.0680M ... Dotad Gncentrates = [at] +[4] = 0.068070-0680 Total Concentraters=10.1360M (1) 0. 0120 m Nassoy Since Na2Soy anat +sori :(7041% = 2X0.0120 - 0.02407 son] =0.0120M :- Poral Conan hates = [mat] + sor ] = 0.0240 t 0.0120 =0.0360m - Total Concentrates = 10.0360 m

(ii) 0:0120 m IC202207 Since, K₂ Cr 2 oy → akt+ 200+70- el = 280-0120 = 0.0240m [ot] =240.0120 = 0.0240m 10] = 770.0120 -0.0840m - Porad Concentrates = (167) +{cce] + [6] = 0.0240+ 0.0240 +0.0840 = 0.1320m Gotal concentraters = 0.132om