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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Yann on January 20, 2020, 01:18:35 PM

Title: Iodine clock reaction
Post by: Yann on January 20, 2020, 01:18:35 PM

Hey guys.
I had a lab last week in which I had to change the sodium thiosulfate concentration and see how it would affect the rate of reaction. The lab procedure can be found at this address: https://edu.rsc.org/resources/iodine-clock-reaction-demonstration-method/744.article
My problem is my reaction started to produce bubbles and I don't know why.
Can you help me?

Title: Re: Iodine clock reaction
Post by: chenbeier on January 20, 2020, 04:10:57 PM

Decomposition  of Peroxide creates Oxygen. ( bubbles)