Determine the reaction order for HCl using calculations described in the background section. Show your work. Note that your answer will probably not be a whole number as it is in the examples, so round to the nearest whole number.

(M) of Na2S2O3 after Mixing in Well \begin{tabular}{l|l|l} Trial 1 & 25.21 & 32.23 \\ Reaction Time & & \end{tabular} 33.75 (sec) \begin{tabular}{l|l|l} Trial 2 & 23.20 & 25.87 \\ Reaction Time & & \end{tabular} 31.58 (sec) Average Reaction Time 24.21 29.02 32.67 (sec) \begin{tabular}{l|l} Reaction & .041 \\ \hline "Rate" (sec1) & \end{tabular} .035 .031