H₂SeO₃ + 6I^- + 4H⁺ --> Se + 2I₃^- + 3H₂O

Determine the experimental rate law and rate constant (k) for the reaction. Find the order for all 3 reactants.

\begin{tabular}{l|cccc} & {[H2SeO3]} & {[L]} & {[H+]} & Initial Rate rxn(M/s) \\ \hline Trial 1 & 0.644 & 0.820 & 0.100 & 0.0413 \\ Trial 2 & 0.100 & 0.820 & 0.100 & 0.00642 \\ Trial 3 & 0.644 & 0.820 & 0.200 & 0.165 \\ Trial 4 & 0.500 & 0.500 & 0.200 & 0.0611 \\ Trial 5 & 0.500 & 1.00 & 0.200 & 0.173 \end{tabular}