Check my answers and respond 4,5 and 7 (show all work) What is qualitative analy

Question

Check my answers and respond 4,5 and 7 (show all work)

What is qualitative analysis? An Analysis that have been used to identify the presence of specific ions in a mixture but not their quantity. Explain the process of "selective precipitation". Is the ability to separate ions by forcing the precipitation of a specific ion as a solid out of a solution based on the value of the solubility product constant, Ksp What are group I ions? GROUP I ions are silver, lead (II) and Mercury (I). The Three ions of Group I form chlorides that are insoluble in acidic solutions. How does the Ksp help to determine solubility? List the following compounds from the most soluble to the least soluble What is a centrifuge? A centrifuge is a device that spins quickly to press objects outward with centrifugal force. Typically to separate fluids of different densities or liquid from solids. What precautions must be takeb when using a centrifuge? On what solubility principle are the group I cations separated from all other cations? Because Group I form chlorides that are insoluble in acidic solutions. Define the term decant.

Explanation / Answer

4) Ksp = Product of the conc. of ions raised to the power their stoichiometric coefficient. The higher the Ksp , higher the solubility because it represents that a higher conc. of ions has been formed in solution

5) Most soluble (PbCl2) > AgCl > Hg2Cl2

7)In centrifuge tubes put equal amount weight wise. Close and tighten all screws and lids. Gently increase the speed.Maintain a constant temperature. In case of any noise, immediately turn off the electric switch

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