Question

a Calculate the number of moles of the indicated ion present in the following solution: Na+ ion in 1.52 L of 0.259 M Na2SO4 solution. mol b Calculate the number of moles of the indicated ion present in the following solution: ci-ion in 1.04 L of 0.105 M FeCl3 solution. mol c Calculate the number of moles of the indicated ion present in the following solution: NO3-ion in 295 mL of 0.66 M Ba(NO3)2 solution. mol d Calculate the number of moles of the indicated ion present in the following solution: NH4+ ion in 480. mL of 0.320 M (NH4)2SO4 solution. mol

Answer 1

mac o Na2 say - molaatty & volume = 0. 259 mox 1.52x = 0.39368 me Naz say Nay sor has 2 na male ind of .. mall of Nal present = and NGO 0.393GP nel 2 Seix Inel Nossay 0. 787 and nach = " male of No =o. 787 me wat Tecla mell q feels a molauty & Feeligt vel. of a 0.105 mol x 1.044 = 0.1092 ml Feelz lond Feelz hos 3 orel cio "male of co- cla o. 1092 med fecla Smelci imde socla = 0.328 and all

6. mae & Bag), = 0.66 mol 295 ml x IG 3L o. 1947 mel Ba(NO) mell of Nol = 0.1947 rel Bang) x. and Ngo & inred Bat Noz) = 0.390 wel nog @ mele of (NH) say = 0.320 mol u gonty 1034 - 0.1536 me! (NHU) say mde of , NHult = 2 minha 0. 1536 rd a) sauva Irrel (N / say 0. 307 rel WHICH =