Info: Two solutions of calcium iodate will be used. One is a solution of calcium
ID: 906464 • Letter: I
Question
Info:
Two solutions of calcium iodate will be used. One is a solution of calcium iodate in pure deionized water. The other is in an aqueous solution containing 0.0100M KIO3. You will measure the concentration of the iodate ion in each solution. In the first case, the solution in pure water, the solubility of the calcium iodate will be 1/2 the concentration of the iodate ion. In the other case, finding the solubility of the calcium iodate is a bit more involved. After finding the total concentration of the iodate ions in the solution of the calcium iodate in the water containing 0.0100M KIO3, 0.0100 will be subtracted, and 1/2 of the remaining iodate ion concentration will give the solubility of the calcium iodate.
1. Explain the reasoning behind the statements about the relationship between the iodate concentration and the solubility
Explanation / Answer
case -1
when deionised water is used the solubility will be higher , because no common ion is there which can affect or decrease the solubility of Calcium iodate
Case-2 ,
Solution already containing 0.0100M KIO3.
the presence of Common ion IO3-1 will supress the solubility of the new salt Calcium iodate.
Its because as the strong electrolyte is present .