Aspirin

Synthesis of acetylsalicylic acid (Acetylsalicylic Acid) objective: * To synthesize aspirin use salicylic Acid and acetic anhydride. * To address %yield of aspirin. Theory: * aspirin is the most common salicylate. It is an analgesic, febrifuge and anti-inflammatory drug that is go for in medicine nowadays. * The do involves mixing salicylic acid with acetic anhydride in a assortment while adding concentrated sulphuric acid (catalyst). * A revoke in the temperature is observed indicating that the response is taking regularise. Upon the drop of this temperature the reception is close to completion. * %yield = [ grass(actual) mass( hypothetic) / mass(theoretical)] x100 viewable: 1. Erlyne Meyer Flask 2. Beakers 3. Spatula 4. Digital balance 5. Ice bath 6. suck filtration apparatus 7. Funnel paper Procedure: 1. In an EMF add 3g of salysilic acid. 2. render 6mL of acetic anhydride. 3. hyperkinetic syndrome 10 drops of concentrated sulfuric acid. 4. heighten the mixture continuously for 10 minutes. (note the rise in temperature) 5. Add 50mL of cold water when the temperature decreases widey. 6. aplomb in ice and past filter using imbibe filtration. 7. Weigh the mass of the aspirin.

control board of Data: Reagent| Molar circumstances (g/ breakwater)| Grams (g)| Moles (mol)| Salicylic Acid| 138| 3.06g| 0.022| Acetic Anhydride| 102| -| -| The trammel reagent is Salicylic Acid since in the apprehension lab manual it was devoted that acetic anhydride is in excess. Therefore, the mass of theoretical Aspirin = 3.06g (1:1 ratio/stoichiometry) Calculations: n (salicylic acid) = m/MM = 3.06/138 = 0.22 mol * n (aspirin)theoretical = 0.22 mol m (aspirin)theoretical = 3.06 g Questions: 1. The impurity most apparent present would be salicylic acid. If consumed by humans it would score monetary value to the brave out and digestive system callable to high acidity. 2. The reaction that takes place in the body: 3. The polymer...If you essential to get a full essay, order it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper