What were your observations? What happened during the experiment? What form is the CuI?
Do you know what a redox process is?
the solution containing iodine and sodium iodide changed colour from brown to colorless after heating with copper wire,meaning all I2 have been reacted with copper to form CuI. the CuI obtained was in aq form and precipitate out after cooling in cold water. Now I understand why NaI will not react with Cu, because this is a redox reaction, Cu is being oxidized, meaning I need to be reduced, but I in NaI cannot be reduced.
But I still cannot find out the second role of NaI other than helping to dissolve I2
What were your observations? What happened during the experiment? What form is the CuI?
Do you know what a redox process is?
the solution containing iodine and sodium iodide changed colour from brown to colorless after heating with copper wire,meaning all I2 have been reacted with copper to form CuI. the CuI obtained was in aq form and precipitate out after cooling in cold water. Now I understand why NaI will not react with Cu, because this is a redox reaction, Cu is being oxidized, meaning I need to be reduced, but I in NaI cannot be reduced.
But I still cannot find out the second role of NaI other than helping to dissolve I2
Do you know what a redox process is?
Do you know what a redox process is?
More
VOTE
the CuI obtained was in aq form and precipitate out after cooling in cold water.
Now I understand why NaI will not react with Cu, because this is a redox reaction, Cu is being oxidized, meaning I need to be reduced, but I in NaI cannot be reduced.
But I still cannot find out the second role of NaI other than helping to dissolve I2
the CuI obtained was in aq form and precipitate out after cooling in cold water.
Now I understand why NaI will not react with Cu, because this is a redox reaction, Cu is being oxidized, meaning I need to be reduced, but I in NaI cannot be reduced.
But I still cannot find out the second role of NaI other than helping to dissolve I2
More
VOTE