A 0.050 M sample of hydrogen iodide is decomposed into hydrogen and iodine, according to the equation above. The [HI], ln[HI], and 1/[HI] vs. time graphs are plotted. (The equations are given for the best-fit straight line for the data, and R 2 value indicates the strength of correlation.) a. Write the rate law for this reaction. Justify your response using the graphs provided. b. Find the value of the rate constant, k. Include units. c. At what time will [HI] be 0.001 M