Reference no: EM13164327

Co(H2))6 2+ + 4Cl- --> <-- CoCl4 2- + 6H2O (pink --> <-- blue) When heated the test tube changes from pink to blue then placed on ice and turns pink. In another test tube one drop of 12M HCl is added and turns from pink to purple/blue. Interpret these results by applying Le Chatliers principle to the equilibrium shown. Record wether the increasing temperature led to an increase or decrease in the value of the KEQ for the reaction To 4 mL of (5.4M) NaCl we added 2 mL of concentrated(12M) HCl. Calculate the total Cl- concentration in the NaCl solution after adding 2 mL of 12 M HCl to 4 mL of 5.4 M NaCl, and explain the observed in terms of the saturated solution equilibrium. To 3 mL of 0.1 M BaCl2 add 5 - 6 drops of 1 M K2CrO4 stir and add 10 -12 drops of 6M HCl. The K2Cro4 created a cloudy yellow substance. The addition of HCl created a solid (the salt seperated). Write and equation for the reaction of Ba+ with CrO4 2-. Using the eqution you have written, explain how the addition of HCl shifts the equilibrium of the reaction