3. The following set of concentration vs. time data was obtained for a reaction which is second order overall and has a single reactant, substance A. Time (S) JA) in M 1/JAJ (M) 0 1.000 50 0.667 100 0.500 200 0.333 a) Fill out the table of 1/[A] and hand sketch the plot of 1/[A] vs. t. Does it appear to be as expected?? (Why or why not?) b) Using any pair of data points, calculate the rate constant for the reaction. c) Using your value of k from part b, calculate the reaction rate at t=0 s. Calculate and compare the rate at t=100 s. Is this the trend you expect?? d) What is the reaction half-life at t=100 s