Consider the following elementary reaction: (CH3)3CBr(aq)(CH3)3C+(aq)+Br(aq) Suppose we let k1 stand for the rate constant of this reaction, and k1 stand for the rate constant of the reverse reaction. Write an expression that gives the equilibrium concentration of Br in terms of k1,k1, and the equilibrium concentrations of (CH3)3CBrB and (CH3)3C+