The decomposition of hydrogen iodide is a second-order process with a rate constant of 0.0016M1s1 at 298 K. 2HI(g)H2(g)+I2(g) If the initial concentration of HI is 0.795M : A. What concentration of HI remains after 89.7 seconds? M (Enter an answer accurate to three significant figures. For scientific notation enter 1234 as 1.234e3 and 0.1234 as 1.234e1). B. How many seconds does it take for the concentration to decrease to 0.552 ? S (Enter an answer rounded to one decimal place)