H :C—C— H 1) How many Chlorine atoms are in a molecule of dichloromethane? 2) How many Carbon atoms are in a molecule of dichloromethane? 3) What is the atomic mass of a single Chlorine atom from the periodic table? 1mol = grams? 4) What is the molar mass of the whole Dichloromethane molecule? 1mol = grams? Use the equality you found in #4 to answer questions #5 and #6. 5) If I have 450 grams of Dichloromethane, how many mols would that be? Use the molar mass of Dichloromethane to convert from grams to mols.

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 1.74 x10-6 m . drug a is introduced into the protein solution at an initial concentration of 2.00 x10-6m. drug b is introduced into a separate, identical protein solution at an initial concentration of 2.00 x10-6m. at equilibrium, the drug a-protein solution has an a-protein complex concentration of 1.00 x10-6m, and the drug b solution has a b-protein complex concentration of 1.40 x10-6m.a. calculate the kc value for the a-protein binding reaction.b. calculate the kc value for the b-protein binding reaction.c. assuming that the drug that binds more strongly will be more effective, which drug is the better choice for further research?