CHM 1311 Study Guide - Final Guide: Skimmed Milk, Ammonia, Silver Iodide

• School: University of Ottawa
• Department: Chemistry
• Course: CHM 1311
• Professor: Wendy Pell

Document Summary

[cu(h 2o) 4] 2+ (aq) + 4 nh 3 (aq) [cu(nh 3) 4] 2+ (aq) + 4 h 2o (l) Cuso4 has a light blue colour in its liquid form. Distinct smell from nh3, causing the solution to turn from a light blue solution to a dark blue one within the first two drops. This is due to le chatelier"s principal, which made the solution shift to the right in the equation shown above to maintain equilibrium. Addition of roughly 6 hcl drops added to the solution caused it to turn into a cloudy mixture of light and dark blue colours, eventually becoming a cloudy white colour near the end. This is due to the equilibrium shifting to compensate for the h+ ions reacting with the (cu (nh3)4)2+ , causing the equation to shift to the left from the addition of more products. As the steps were repeated, the same trends show up for the same reasons.