Question
Anila performed the following reactions between oxalic acid (H2C2O4) and Permanganate ion and measured the reaction...
Anila performed the following reactions between oxalic acid (H2C2O4) and Permanganate ion and measured the reaction time at a constant temperature:
MnO4-(aq) + H2C2O4(aq) --> MnO2(aq) + CO2(g) + (other products)
rate = k[MnO4-]x [H2C2O4]y
| Determination | Initial [MnO4-], mol/L | Initial [H2C2O4], mol/L | Elapsed time (Δt), s | Reaction rate, mol/L·s |
| 1 | 0.0230 | 0.120 | 224 | |
| 2 | 0.0230 | 0.240 | 111 | |
| 3 | 0.0460 | 0.240 | 110 |
a) (3 pts) Calculate the reaction rate of the determination 2, using reaction rate = -Δ[MnO4-]/Δt.
b) (3 pts) Determine the order (y) of the reaction with respect to H2C2O4 .
c) (4 pts) Calculate the rate constant, k, in this reaction.
d) (Bonus, +5 pts) Calculate the reaction rate for the reaction of MnO4- and H2C2O4 at the same temperature when the initial MnO4- and H2C2O4 concentrations are 2.34 x 10-3 mol/L and 5.42 x 10-1 mol/L, respectively.
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