![]() This problem has been solved Youll get a detailed solution from a subject matter expert that helps you learn core concepts. The precipitates will dissolve and darkly colored ammonia complexes will form. Use the tables provided to guide you through it. Ammonia is added to solutions of cobalt, nickel, and copper 2+ cations. The appearance of a red color confirms the presence of Al3+. Science Chemistry Chemistry questions and answers Please answer ALL parts (NaOH, NH3, hydroxide precipitate, and amphoterism). The dye aluminon when added to the precipitate, changes the color of the precipitate. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong. Let the solution sit for 5 minutes, and it should separate into three layers: o Green Ni(H2O)62+, white Ni(OH)2 precipitate, and royal blue Ni(NH3)62+. formation of a white aluminum hydroxide precipitate. (Cobalt requires 6 times the cation volume to form the complex. Add 15M NH4OH with stirring to the same beaker or test tube. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The solutions will become cloudy and change color due to the precipitation of metal hydroxides. Nickel chloride, N i C l X 2 ( a q), is a yellow solution. One question is Nickel sulfate, N i S O X 4 ( a q) is a green solution. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. Copper and Nickel Ions Observed colors of the solutions: Copper (II) Ions. 13 My daughter has a chemistry test that I am helping her prepare for.
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