1. The equilibrium concentrations in a gas mixture at a particular temperature are 0.13 MH2, 0.70 M I2, and 2.1 HI

What equilibrium concentrations are obtained at the same temperature when 0.20 mol of HI is injected into an empty 460 mL container?

2. An equilibrium mixture of H2 molecules and H atoms at 500 K contains mainly H2 molecules because the equilibrium constant for the dissociation reaction H2(g)?2H(g) is very small (Kc=1.2×10-42).

What is the molar concentration of H atoms at equilibrium if the equilibrium concentration of H2 is 0.22 M?

How many H atoms are present at equilibrium in 1.0 L of 0.22 M H2 at 500 K?

How many H2 molecules are present at equilibrium in 1.0 L of 0.22 M H2 at 500 K?

3. A mixture initially contains A, B, and C in the following concentrations: [A] = 0.700 M, [B]= 1.35 M, and [C]= 0.550 M . The following reaction occurs and equilibrium is established:A+2B?C At equilibrium, [A] = 0.520 M and [C] = 0.730 M.

Calculate the value of the equilibrium constant, Kc.