Consider the base hydrolysis of an ester.
RCOOR’ + OH− → RCOO− + R’OH (where R and R’ represent organic groups).
The kinetics of this reaction, for a particular ester, were studied using the isolation method.
When [OH−] << [RCOOR’] a pseudo-rate law can be posed:
-d[OH–] / dt = k” [OH–]m
With initial concentrations:
[OH−]0 = 0.0015 M
[RCOOR’]0 = 0.700 M
a plot of ln[OH–] versus t gave a straight line with slope = -0.0176 s-1 and y-intercept = -6.50.
What is the order “m”?
m = ?
What is the corresponding pseudo rate constant k”? (include appropriate units)
k” = ?
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