Question

10. Rewrite the nee d ed Part II. Dissolution of malum chloride a water Section A 1. Initial appearance of equilibrium m e Clear 2. Change after addition of cone HICH cloudy Nhile 3. Change after heating mature for 3-4 min Clear 4. Change after cooling mixture Section B Cloudy White Observations of dissolution of solid NH.C in water, The dissolution is cold, Conclusions 5. The equation for the dissolution of NHCl in water is: NH.C($) 5 NH' (aq) + CT (a) Write the equilibrium expression for the equation Kc = [NHalcol INHA CI] 6. In terms of Le Chatelier's principle, explain the change you observed on adding the concentrated HCl to the initial solution. NH4Cl + H20 = N HOH + HC) mmonium) hloride at added Hcl, qucording to the prinuple, the reaction and system will try to decrease the contentration of HOI. wall 7. Is the dissolution of solid NH.Cl in water an exothermic or endothermic process? What experimental observation supports your answer? NHệ Nhat + foward reaction is endothermic and backward heathen is ex them, because the dissolution of ammonium 8. Rewrite the chemical equation to include the "heat" term. Chloride wat 7-7

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Answer 1

NHU CU + Nitgł + helt heating Solid Ammonium chloride it will result sublimation observed when we heat. That is directly change from solid to vapour. The process or changing Solid to vapour on heating and change or vapour to solid on cooling is called sublimation