No, it is soluble in water
On addition of the KI to your copper (II) solution, you formed Copper (I) iodine solid and produced the tri-iodide ion. It is the tri-iodide ion that you are titrating with the sodium thiosulfate. The tri-iodine ion is what itercalates into the starch molecules to form the dark blue color you are using as an end point in the titration. Some the the tri-iodide ion formed will adsorb to the surface of the solid copper (I) iodine formed. This must be desorbed for a complete titration. The addition of the potassium thiocyanate, displaces the adsorbed tri-iodine ion, and liberates it for titration.
Phosphorus tri-iodide refers to Phosphorus(III) Iodide, with formula PI3
SNI4=Stannic Iodide/TIn (VI) Iodide N203=Nitrogen tri oxide PCl3=Phosphorus tri chloride CSe2=Carbon deselenide
It is Nitrogen tri-iodide (NI3)
Boron forms a tri-positive ion.
I3- is known as the triiodide ion (or sometimes tri-iodide ion, for better readability). It arises in equilibrium when elemental iodine (I2) and the iodide ion (I-) are both present.
On addition of the KI to your copper (II) solution, you formed Copper (I) iodine solid and produced the tri-iodide ion. It is the tri-iodide ion that you are titrating with the sodium thiosulfate. The tri-iodine ion is what itercalates into the starch molecules to form the dark blue color you are using as an end point in the titration. Some the the tri-iodide ion formed will adsorb to the surface of the solid copper (I) iodine formed. This must be desorbed for a complete titration. The addition of the potassium thiocyanate, displaces the adsorbed tri-iodine ion, and liberates it for titration.
On addition of the KI to your copper (II) solution, you formed Copper (I) iodine solid and produced the tri-iodide ion. It is the tri-iodide ion that you are titrating with the sodium thiosulfate. The tri-iodine ion is what itercalates into the starch molecules to form the dark blue color you are using as an end point in the titration. Some the the tri-iodide ion formed will adsorb to the surface of the solid copper (I) iodine formed. This must be desorbed for a complete titration. The addition of the potassium thiocyanate, displaces the adsorbed tri-iodine ion, and liberates it for titration.
Phosphorus tri-iodide refers to Phosphorus(III) Iodide, with formula PI3
An iodide ion is an iodine atom with a −1 charge. Compounds with iodine in formal oxidation state −1 are called iodides. This can include ionic compounds such as caesium iodide or covalent compounds such as carbon tetraiodide.
All four carbon bromides (mono-, di-, tri- and tetra-Bromomethane) are insoluble or immiscible with water.
SNI4=Stannic Iodide/TIn (VI) Iodide N203=Nitrogen tri oxide PCl3=Phosphorus tri chloride CSe2=Carbon deselenide
The leaf was rinsed in water to rehydrate it. Iodine solution is an aqueous solution of iodine/potassium iodine - potassium tri-iodide; water is needed inside the leaf to enable penetration by diffusion.
It is Nitrogen tri-iodide (NI3)
Phosphorus can be bi-, tri-, penta- and hexavalent.
Boron forms a tri-positive ion.
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