Part A: For the reaction 2 A + B → C, the initial rate is measured at several different reactant concentrations. From the resulting tabulated data, determine the rate constant for the reaction. [A](M) [B](M) Initial Rate (M/s) 0.05 0.05 0.035
0.10 0.05 0.070 0.20 0.10 0.28
Answers?: 1.4×102M−2⋅s−1, 2.8×102M−2⋅s−1, 28M−2⋅s−1, 14M−1⋅s−1 Which one of these is it, and how?
Part B: The aquation of
tris(1,10-phenanthroline)iron(II) in acid solution takes place
according to the equation:
Fe(phen)32+ + 3 H3O+ +
3 H2O → Fe(H2O)62+ + 3
phenH+.
If the activation energy, Ea, is 126 kJ/mol and the rate
constant at 30°C is 9.8 × 10-3 min-1, what is
the rate constant at 35°C?
Part C: What are the units of k in the
following rate law?
Rate = k[X]?
I have been stuck on these for a little while now, Thanks a lot for the help!
part B
ln(k2/k1) = Ea/R[1/T1-1/T2]
ln(x/(9.8*10^-3)) = (126*10^3/8.314)((1/303)-(1/308))
x = k at 35c = 2.2*10^-2 min-1.
part C
Rate = k[X]
rate units = M/S
[X] = M
K units = s-1
Part A: For the reaction 2 A + B → C, the initial rate is measured...
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