Question

Solve the following problem. Your solution must apply the ICE method and your final answer must include the units and the appropriate number of significant figures. For the reaction H2 (g) + I2 (g) = 2HI (g) at equilibrium, the 5.0 L container comprises 2.0 moles of H2 (g), 4.0 moles of I2 (g) and 3.0 moles of HI (g). How many moles of H2 (g) must be added to bring the concentration of HI (g) 0.84 mol/L.