Question

Activity 4: Observations and Interpretations NH.C(s) + H.O() ( NH. (aq) + Cl(aq) " What did you observe when you added the concentrated HC solution to the saturated solution of ammonium chloride? 4) Interpret the observation in 1. in terms of the equation given above and LeChatelier's Principle. 3) What did you observe when you placed this test tube in the boiling water bath? 4) Based on your observations in 3, which of the reactions in the equilibrium, written above, is 13 endothermic and which is exothermic? Explain. 5) What temperature change did you observe when ammonium chloride was dissolved in water? bobo od ) DUOD 6) What does such a temperature change indicate, and is this consistent with what you observed in 3? Explain. Hig h

Answer 1

29 March 2020 02:42 AM < Backward 1 - - Act 4: Observations and Interpretations NHS) H.OXU) NH() ( ) What did you observe when you added the concentrated a solution to the saturated solution of ammonium chloride? Nhit con) till (og) Nhyll is +60 - 4) Interpret the observation in 1. in terms of the equation given above and LeChatelier's Principle. ни —> ноу t + ce cond! 3) What did you observe when you placed this test tube in the boiling water bath? Ans.1 If we add HCl in NH4Cl solution then concentration of Cl-ion increases in the solution. And we observe the solubility of NH4Cl decreases. Ans. 2 Acc. To Le Chatelier's Principle Equilibrium will shift towards Backward direction. And Ksp of NH4Cl decreases. Ans. 3 As we know, the dissociation of NH4Cl is endothermic. If we increase the temperature of the solution , equilibrium will shift towards forward direction. i.e. More dissociation of NH4Cl takes place and Ksp of NH4Cl increases. Thank you Acc. To Rules and Regulations, only first three subparts can be answered.