Achemist at a pharmaceutical company is measuring equilibrium constants for reactions in which drug candidate molecules bind to a protein involved in cancer. the drug molecules bind the protein in a 1: 1 ratio to form a drug-protein complex. the protein concentration in aqueous solution at 25 ∘c is 1.76×10−6 m . drug a is introduced into the protein solution at an initial concentration of 2.00×10−6m. drug b is introduced into a separate, identical protein solution at an initial concentration of 2.00×10−6m. at equilibrium, the drug a-protein solution has an a-protein complex concentration of 1.00×10−6m, and the drug b solution has a b-protein complex concentration of 1.40×10−6m. part apart complete calculate the kc value for the a-protein binding reaction. express your answer using two significant figures. kck c = 1.3×106 previous answers correct part b calculate the kc value for the b-protein binding reaction. express your answer using two significant figures.