In the reaction of H2O2 and I- , a quantitative amount of S2O32- is added ;...

Question

Question

In the reaction of H₂O₂ and I^- , a quantitative amount of S₂O₃^2- is added ; starch in solution is also added.

The balanced equation for the reaction is:

H₂O₂ + 3I^- + 2H⁺ = I₃^- + H20

What is purpose of S₂O₃^2- ? Is it to prevent an equilibrium back rxn from occurring???

What is purpose of starch solution? used as an indicator, right?

science chemistry

Answer 1

Answer #1

Answer 2