1.15 Copper naturally occurs in two major isotopes, 65Cu and 63Cu. What is the number of moles of 63Cu65Cu you expect to have at equilibrium if you start with 1.75mol of 65Cu2 and 0.50 mol of 63Cu2 ? 1.16 Starting with the system in the previous problem, what is the new most probable distribution if (a) 0.75mol of 63Cu2 is added? (b) 1.75mol of 63Cu65Cu is added? (c) 0.25mol of 63Cu2 and 0.25mol of 63Cu65Cu are added