The decomposition of hydrogen iodide on finely divided gold 150 C is zero enter with respect to HI. The rate defined below is constant at 1.20X10-4 mol/L -s
2HI (g) -----> H2 (g) + I2 (g)
Rate = Delta (HI)/ Delta R= k = 1.20 x 10-4 mol/L -s
A. If the initial HI concentration was 0.250 mol/L, calculate the concentration of HI at 25 minutes after the start of the reaction.
B. How long will it take for all the 0.250 M HI to decompose?