for the reaction H2+I2--2HI at a given temperature it was found that an equilibrium mixture in a 10mL container consisted of 8.0 mol of HI, 1.0 mol of H2 nd 1.0 mole of I2. what is the equilibrium constant at that temperature?

Answer 1

M HI = mols/L = ?
M H2 = mols/L = ?
M I2 = mols/L = ?

Then substitute the M of each into the Keq expression and solve for K.