Find the equilibrium concentrations of a, b, and c for a=1, b=1, and c=2. assume that the initial concentrations of a and b are each 1.0 m and that no product is present at the beginning of the reaction.

consider the following reaction and associated equilibrium constant:
aa(g)+bb(g)⇌cc(g), kc = 4.0

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

the answer for sodium is 0.186

the answer for rubidium is 0.251