Silver Nitrate Test Lab Report

The substances used during the experiment have some hazardous drawbacks. Some hazards of working with trans-cinnamic acid are skin, eye, and respiratory irritation (CINNAMIC ACID). This compound may be combustible at high temperatures. Some hazards of working with acetic acid severe skin burns and eye damage Acetic acid). This compound is combustible. Some hazards of working with ethanol are eye and skin irritation and causes organ toxicity (Ethanol). This compound is combustible. Some hazards of working with pyridinium tribromide are severe skin and eye damage and lung irritation (Pyridinium tribromide). This compound is not combustible. Some hazards of working with silver nitrate are serious burns to the eyes and skin when in contact and

Approximately 10mg of the white crystalline product was dissolved in 0.5mL of 95% ethanol in a small test tube to make a colorless solution.
10. The product was then introduced to 0.5mL of 2% ethanolic silver nitrate for the silver nitrate test.
11. The silver nitrate was let to stand for 5 minutes with the product and ethanol.
12. The silver nitrate and product created a creamy crystal precipitate and a cloudy solution.
13. The success of the silver nitrate test was recorded and the lab was concluded by cleaning the fume hood.

Results When observing the product, it was clear to see that the formation of a creamy precipitate in the silver nitrate test meant the bromination of trans-cinnamic acid with pyridinium tribromide was successful. First, the mass of the filter paper was 20mg. With the white crystals after filtration, the product with the filter paper was weighed to be 1.058mg. The final mass of the product was 1.038g. The limiting reagent of this experiment was determined to be trans-cinnamic acid, with (Fig. 3). The theoretical yield of the product was expected to be 944mg (Fig. 4). However, the percent yield of this experiment was 109.96% (Fig. 5). Ultimately, the product mass collected after the reaction was a greater amount than the initial mass used in the original