Use the following data to calculate the equilibrium constant for the cobalt chloride system. Show all work. 2. Use Excel to plot the percent distribution of [Co(H2O)6]2 and [CoCl4]2 as a function of [HCl]0 from the data in Question 1. Show your calculations. 3. Write the equation for the expected reaction when silver nitrate is added to a solution of coball chloride