Nahco3 Lab Report

The percentage of NaHCO3 and Na2CO3 calculated from the final unknown test was 77.15% Na2CO3 and 22.85% NaHCO3 (refer to table 3). This was calculated by calibrating an equation in the form of Y = MX + B to the data provided (refer to graph 3). This was able to be done because there was a clear correlation in the data. The greater the amount of NaHCO3, the higher the pressure. When the solution contained 0.2g of Na2CO3, the reaction pressure was 118.45 ka/p, at 0.1g of Na2CO3 and 0.1g of NaHCO3 the pressure was 133.00 ka/p, and at 0.2g of NaHCO3 the pressure was at 146.61. (refer to table 3)

The most effective method for testing the percentage of NaHCO3 and Na2CO3 in a mixture was determined to be Test 3: Pressure Analysis. While it was not as effective as Test 1: Solution Conductivity when adhering to principles of Green Chemistry, but Test 3 provided the most accurate results. The reactions between Na2CO3 or NaHCO3 and Acetic Acid produced Sodium Acetate, Water and Carbon Dioxide. While it did produce CO2 and Sodium Acetate which are waste products, they are considered non-hazardous being the side products of the common baking soda and vinegar reaction. Test 2, Thermal Decomposition, was determined to ineffective. The waste products of Test 2 were in greater number, 2 grams of solid Na2CO3 and NaHCO3 mixture had to be disposed, and there was a great waste in heat energy from the hot plate. The hot plate was left on

There are no clear time limits or indicators to when the crucible should no longer be heated. Also, the temperature of the hotplate was unable to be measured, it was supposed to reach 100C, but there were no knobs indicating exact temperatures on the hot plate, and the temperature measurement tools were insufficient. In the 3rd experiment, the probes produced similar results (unlike those used in the first experiment), and the data did correlate. Even so, 2 different probes used during the