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April 16, 2014

Homework Help: chemistry

Posted by Andrea on Tuesday, February 15, 2011 at 1:05pm.

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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