CHM110H5 Lecture Notes - Lecture 1: Volumetric Flask, Ethylenediaminetetraacetic Acid, Fume Hood
Document Summary
In this experiment, the amount of calcium in grams was determined for tablet a and b through a titration with edta, ethylenediaminetetraacetic acid. In the reaction with edta, the acidic solution which contained magnesium and calcium would have calcium form a more stable compared with edta than magnesium. This is an advantage to the calcium since edta reacted with calcium first. The amount of calcium would be determined when acidic solution turned blue which was the titration"s endpoint. The %w/w of calcium in the tablet would be found with the amount of calcium in grams and weight of tablet determined. First, the weighing paper was weighted and then the tablet 1 on top of the weighing paper was weighted on an analytical balance. After the measurements were taken, the next step was to dissolve tablet 1. Tablet 1 was placed in a 250ml volumetric flask. 5ml of 3m hcl was added to tablet 1 each time.
