Posted by Andrea on Tuesday, February 15, 2011 at 1:05pm.
all i know is that the varsol phase is pink and the I2/KI phase is brown at equilibrium.
Thanks for helping :)
I understand that part, but I don't get in what direction each of the conditions listed above would the equilibrium shift to and how the colour would change.
When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form.
What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube?
What are the colours in each of the 2 phases when each of the following are also added to the test tube containing 2 ml of I2/KI and 2 ml varsol and why:
a) 4 ml varsol
b) 4 ml water
c) 2 drops saturated iodine in KI solution
d) 2 drops saturated sodium thiosulphate
e) 2 drops saturated sodium potassium iodide solution
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