Question

CH3OH + KF → KOH + CH3F is a first order reaction for all of the reactants, with a rate constant of 0.0123 l/Ms. Find the instantaneous rate for this reaction if the initial concentration of CH3OH is 0.59 M, and the initial concentration of KF is 1.22 M.

A. 0.56 1/Ms
B. 0.56 1/M2s
C. 0.0089 M/s
D. 0.0089 M2/s
E. None of the Above

Answer 1

Rate = k x [CH3OH]^1 x [KF]^1
Initial rate, just bang everything in (since you have initial concentrations):
Rate = 0.0123M-1s-1 x 0.59M x 1.22M = 0.0089 M/s

C. 0.0089 M/s