If sodium bromoacetate is used instead of sodium chloroacetate, how will the rate of reaction be affected?

4 answers

What reaction? It would be nice to know.
oops wrong area

Anyway the reaction is
sodium 4-chlorophenolate + chloroacetate ion --> 4-chlorophenoxy-acetic acid
Okay, so I was thinking since this is an SN2 reaction, the leaving group would be Cl- or Br- when using either alkyl halide. The rate would increase because Br- is a weaker base than Cl- (because SN favors weak bases as a leaving group).

Can someone correct me if I'm wrong?
Jenn is correct.
Rates of all reactions ( SN2, SN1, E1, and E2) increase if the leaving group has a better ability to part. The leaving group trend increases as you go down the periodic table of halogens.