A container at equilibrium contains the following concentrations: [Hz] - 0.30 M and [HI] 0.90 M. The equilibrium constant is equal to 6.0. What is the concentration of I2 at
equilibrium?
Hzig) + 1218 = 2 Hle)

The concentration of at equilibrium is 0.45 M

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as  

For the given chemical reaction:

The expression for is written as:

Thus concentration of at equilibrium is 0.45 M

c is the answer because when something is left after something evaporates that shows the chemical change.