CHM 1311 Quiz: Lab report 4
29 Dec 2015
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If any of the above information is unclear or not provided, your grade will not be recorded! Lab day (circle): tues aft tues night wed thurs aft thurs. Checklist: raw data sheet written in pen, completed report form attached signed by ta and attached. [cu(h2o)4]2+ (aq) + 4 nh3 (aq) [cu(nh3)4]2+ (aq) + 4 h2o (l) Initially, cuso4 is light blue, odorless and clear, transparent liquid. Nh3 is colorless, clear liquid but has strong odor. When 3 drops of nh3 added in cuso4, the color of solution changes to dark blue, the solution has the same odor as nh3. [cu(h2o)4]2+ ion and nh3 mixed together, the equilibrium shift to right to form the product [cu(nh3)4]2+, which indicates the dark blue color. Hcl, which is clear, transparent and odorless liquid is added, the color of solution switch back to light blue, odorless but foggy as well as the heat produced by reverse reaction.
