Observations and Data: Aspirin reacted with Sodium Bicarbonate to form salt, sodium acetylsalicylate. The reaction caused fizzing and gas. When hydrochloric acid was added to sodium acetylsalicylate the solution bubbled, sizzled, and gave off heat. All precipitates were white.
0.212g (weighed wet)
Results and Discussion:
The results I got were close to the expected results. During the Isolation of the Unknown component, water splashed on our sucrose sample before we could weigh it and we burned the unknown, skewing the masses. However, there could have been incomplete mixing with dichloromethane, incomplete extraction of precipitation of aspirin, incomplete drying of the recovered components, or losses from transferring substances from one container to another.
% Recovery = sum of the masses of all components/mass of panacetin started with
0.212g+0.849g+1.995g/3.01g = 101%
%Composition = (Amount of Component/Sum of the masses of all components)*100
%Composition of Sucrose = (0.212g/3.056g)*100 =6.9%
%Composition of Aspirin = (0.849g/3.056g)*100 = 27.8%
% Composition of Unknown = (1.995g/3.056g)*100 = 65.3%
Experimental: 3.01g of Panacetin was dissolved in 50mL of