CHEM 1001 Study Guide - Atomic Mass, Boiling Point, Inedia

• School: Carleton University
• Department: Chemistry
• Course: CHEM 1001
• Professor: all

Document Summary

Gravimetric analysis of a chloride salt formal report. Date: october 08, 2013 (cid:0) group: (cid:0) (cid:0) (cid:0) (cid:0) The purpose of the experiment is to define the amount of chloride in an unknown soluble salt in order to show common used techniques in gravimetric analysis. Sliver chloride is formed as illustrated in equation (1) Equation (2) shows the reaction of agcl and equation (3) shows the solubility product ksp. The precipitation is formed quickly making the silver chloride precipitate as a colloid with very small particles in it that could go through the filter; this will cause the results to be low. Therefore, the precipitation has to be transformed into a crystalline form by heating and gently stirring the solution in the presence of nitric acid. Precipitation in a neutral media could result in interference between the chloride ion and the anion of weak acids such as (co and h) which forms co-precipitates forcing the analytical result to be high.