For the reaction, 3I^-(aq) + S2O2^-8(aq) → I^-3(aq) + 2SO2^-4(aq)

Question

For the reaction,

\(3I^-_{(aq)} + S_2O^{2-}_{8(aq)}\) \(\longrightarrow I^-_{3(aq)} + 2SO^{2-}_{4(aq)}\)

3I^-_(aq) + S₂O^2-_8(aq) → I^-_3(aq) + 2SO^2-_4(aq) 

Calculate 

(a) the rate of formation of \(I^-_3\), 

(b) the rates of consumption of 1 and S₂O and 

(c) the overall rate of reaction if the rate of formation of \(SO^{2-}_4\) is 0.O22 moles dm^-3 sec^-1.

Answer 1

3I^-_(aq) + S₂O^2-_8(aq) → I^-_3(aq) + 2SO^2-_4(aq) 

\(\therefore\) (a) Rate of formation of \(I^-_3 = 0.011\) mol dm^-3 s^-1

(b) Rate of consumption of \(I^- = 0.033\) mol dm^-3 s^-1

(c) Rate of consumption of \(S_2O^{2-}_8 = 0.011\) mol dm^-3 s^-1 

(d) Overall rate of reaction = Rate of consumption of reactant = Rate of formation of product