3 Sg + OH → 8 S3+ 4 HOOH In an experiment, a student studies the kinetics of the reaction represented above and obtains the data shown in the following table.
Experiment Initial [Sg] (M) Initial [OH-] (M) Initial Reaction Rate (M/s)
Trial 1 0.100 0.0100 0.699
Trial 2 0.300 0.0100 2.10
Trial 3 0.300 0.0100 4.19
15) Use the data in the table to do the following.
a) Determine the order of the reaction with respect to S8. Justify your answer.
When OH stays constant, S8 concentration triples and so does the rate (increases by 3') so it is first order with respect to S8.
699 = X[0.100] [0.0100], r 2.10 = K[0.300] [0.0100]Y
b) Determine the value of [OH-] that was used in trial 3, considering that the reaction is first order with respect to OH. Justify your answer.
rate= K[S8] [OH-]