(a) A kinetic study of the reaction between an alkyl bromide (RBr) and a non-nucleophilic hase (base) provided the following data: [RBr] (ml) 1 1 2 3 [base] (m) 1 2 4 4 Rate of reaction () 6 6 12 18 Write the rate law for this reaction. Include a numerical value and units for k. Clearly identify the order of each reactant. (b) Did this reaction proceed via an SN1, SN2, E1 or E2 mechanism? Explain your choice. must be clear why all three alternative options were rejected.