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Mobile App Chapter 19: Q42E (page 1096)
Explain how the diphosphate ion, \({\left( {{O_3}P - O - P{O_3}} \right)^{4 - }}\) can function as a water softener that prevents the precipitation of \(F{e^{2 + }}\) as an insoluble iron salt.
Short Answer
Expert verified
Due to its structure, oxygen on one side can form bonds with water and on the other one with \(F{e^{2 + }}\) as it is bonding with water, \(F{e^{2 + }}\) will remain insoluble.
Step by step solution
01
of 2: Lewis structure
The Lewis structure of the diphosphate ion is as follows
02
of 2: Explanation
- As we could see that the negatively charged oxygen atoms on the both sides of the ion which can attract the positively charged \({\rm{F}}{{\rm{e}}^{2 + }}\)ion.
- The other side can form ion-dipole bond with water.
- As the bonding with water is taking place, the \(F{e^{2 + }}\)will remain insoluble in the water.
Result
Due to its structure, oxygen on one side can form bonds with water and on the other one with \(F{e^{2 + }}\)as it is bonding with water, \(F{e^{2 + }}\)will remain insoluble.
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