CHM120H5 Study Guide - Midterm Guide: Volumetric Flask, Coordination Complex, Boiling Chip
Document Summary
The transition metal complex, k[cr(c o ) (h o) ]2h o, will be prepared, seen in the reaction, The theoretical yield of the complex and weight of. To prepare potassium dioxalatodiaquochromate(iii) dihydrate, 400 ml of water was boiled with boiling chips. Six grams of h c o 2h o crystals and two grams of k cr o crystals was mixed and grinded in the mortar and then transferred to an evaporating dish. One drop of distilled water was added in the mixture and the dish was placed on top of the boiling beaker. 20 ml of ethanol was measured and then 10 ml of it was added to the mixture. Another 10 ml of ethanol was added after some of the ethanol evaporated. The mixture was stirred continuously until a powder was formed. The evaporating dish was weighed with the mixture and the difference was the weight of the mixture.
