For the reaction 4 HI + 020 2 H2O + 212 (0) (9) (9) Time (s) [02] (mol/L) 1.00 [HO] (mol/L) 0 [1] (mol/L) 0.200 0 20 40 60 [HI] (mol/L) 1.000 0.600 0.360 0.804 0.392 0.592 The concentration of H, 0 at 40 s is: O 0.320 O 0.784 O 0.108 O 0.720 O 0.360