Asked by Karan

Hello.
I have this question for my class.
We were to mix Na2S2O3 to a a test-tube with Varsol layer on top and an Aqueous layer (of I2/KI) on the bottom. I observed a lighter colour change in both layers. How would I express that as a chemical equation?
Also, I added saturated KI to a test-tube with the same two layers. The pink colour in Varsol got lighter and the colour in Aqueous solution also got lighter. How would I write this as a chemical equation?
Thanks
Answered by Karan
Sorry, my apologies.
After adding Na2S2O3, the Varsol layer became colorless and there was no change in the Aqueous layer.
Answered by Karan
Also forgot to include:
I2(aq) + I- <-> I3- (aq) = AQUEOUS LAYER
I2(aq) <-> I2 = VARSOL
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