[Ainat]

hey all
i've done an experiment on the hnydrolysis of halogenoalkanes by making a reaction mixture with ethanol and water and the halogenoalkane and letting this react for 2,10, 15 mins. a sample is then taken from this reaction mixture and put into a conical flask with ethanol and water. this is then titrated with sodium hydroxide (0.05mol) .

the reaction is
C4H9Br      +          NaOH          -->      C4H9OH  +        NaBr

i need to know how to figure out the rate of reaction of this experiment? do i need to calculate how much NaBr is produced? How do i do this?

Thank you!!!!!