3 x 10^13 s^-1
Gas constant (R) = 0.008314 kJ/(mol*K) = 8.314 J/(mol*K)
Temperature (T) = 25°C = 298 K
Using the Arrhenius equation:
\[ k = A \times e^{-E_a/(R \times T)} \]
Substitute the values:
\[ k = 4.3 \times 10^{13} \times e^{-103,000/(8.314 \times 298)}
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