Reference no: EM132409977

Question

S₂O₈^2-(aq) + 3 I^-(aq)  2 SO₄^2-(aq) + I₃^-(aq)

(a) The rate law for this reaction is first order in S₂O₈^2-(aq) and first order in I^-(aq). What is the rate law for this reaction?

Rate = k [S₂O₈^2-(aq)] [I^-(aq)]

Rate = k [S₂O₈^2-(aq)]² [I^-(aq)]

Rate = k [S₂O₈^2-(aq)] [I^-(aq)]²

Rate = k [S₂O₈^2-(aq)]² [I^-(aq)]²

Rate = k [S₂O₈^2-(aq)] [I^-(aq)]³

Rate = k [S₂O₈^2-(aq)]⁴ [I^-(aq)]

(b) If the rate constant for this reaction at a certain temperature is 0.00609, what is the reaction rate when [S₂O₈^2-(aq)] = 0.0289 M and [I^-(aq)] = 0.0671 M?

Rate = ______ M/s.

(c) What is the reaction rate when the concentration of S₂O₈^2-(aq) is doubled, to 0.0578 M while the concentration of I^-(aq) is 0.0671 M?

Rate = _______ M/s