In addition, you must look for and report H, + OH, NH3 and NH4 if present. Anions (Group 3): Three groups of anions. The unknown will contain no less than two ions in this group. Cations (Group 2): Ba, Ni, Co, Fe, Zn and Al. ![]() The unknown will contain no less than two, no more than four of the ions in this group. Cations (Group 1): Ba, Ag, Hg2, Cu and Zn. There will be three unknowns for you to analyze based on three different groups of ions. You will work out your own scheme for analyzing a mixture containing some combination of a group of ions. In this experiment, you will be required to id entify the ions in an unknown mixture. An example of a quantitative test would be an acid/base titration to determine c oncentration (volumetric analysis). Cation Separation Example.Ĭhemistry 102 Quantitative analysis is a method used to determine exact amount. ![]() The separation of ions is easily achiev ed by taking advantage advanta ge of their solubility properties (Flow-Chart 1). Examples of qualitative tests would include ion precipitation reac tions (solubility tests) or chemical reactivity tests. In many cases, qualitative analysis will also involve the separation of ions or compounds in a mixture. Qualitative analysis is analysis is a method used for identification of ions or compounds in a sample.
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