Elemental sulfur can exist as molecules with the formula S_8. The S_8 molecule is represented by the — Kinetics Chemistry Question
Problem Context
Elemental sulfur can exist as molecules with the formula S_8. The S_8 molecule is represented by the incomplete Lewis diagram above.
[VISUAL]
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3 S_8 + 8 OH^- → 8 S_3^- + 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 [S_8] (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 | ? | 4.19 |
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The next day the student conducts trial 4 using the same concentrations of S_8 and OH^- as in trial 1, but the reaction occurs at a much slower rate than the reaction in trial 1. The student observes that the temperature in the lab is lower than it was the day before.