Page 1 of 3Name: Chem 10, Section: Lab Partner: Experiment Date: Chemical Equilibrium and Le Chatelier’s Principle 1) Saturated Sodium Chloride Solution Equilibrium System: Observations upon addition of HCl: In which direction did this stress cause the equilibrium system to shift? Left or Right Which ion caused the shift? Explain. 2) Acidified Chromate Solution Equilibrium System: Observations upon addition of HNO3: In which direction did this stress cause the equilibrium system to shift? Left or Right Which ion caused the shift? Explain. Observations upon addition of NaOH: In which direction did this stress cause the equilibrium system to shift? Left or Right Which ion caused the shift? Explain.Page 2 of 33) Aqueous Ammonia Solution Equilibrium System: Observations upon addition of NH4Cl: In which direction did this stress cause the equilibrium system to shift? Left or Right Which ion caused the shift? Explain. 4) Cobalt(II) Chloride Solution Equilibrium System: Observations upon addition of HCl: In which direction did this stress cause the equilibrium system to shift? Left or Right Which ion caused the shift? Explain. Observations upon heating: In which direction did heating cause the equilibrium system to shift? Left or Right Based on these results, is this reaction (as written) exothermic or endothermic: Explain:Page 3 of 35) Iron(III) Thiocyanate Solution Equilibrium System: Observations upon addition of FeCl3: In which direction did this stress cause the equilibrium system to shift? Left or Right Which ion caused the shift? Explain. Observations upon addition of KSCN: In which direction did this stress cause the equilibrium system to shift? Left or Right Which ion caused the shift? Explain. Observations upon addition of AgNO3: In which direction did this stress cause the equilibrium system to shift? Left or Right Which ion caused the shift?
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