What is the reaction between aspirin and water?
Aspirin is a pain reliever and fever reducer, but if it’s allowed to react with water then it can undergo hydrolysis, forming salicylic acid and acetic acid, which is no longer effective. This reaction can occur under acidic or basic conditions.
What is the chemical equation for aspirin?
Aspirin C9H8O4 is made when salicylic acid C7H6O3 reacts with ethanoic anhydride C4H6O3 . The equation for this reaction is: C7H6O3 + C4H6O3 → C9H8O4 + CH3COOH Calculate the maximum mass of aspirin that could be made from 100 g of salicylic acid.
What are the products in the equation?
Products are the end-result of the reaction and are written on the right-hand side of the equation.
What is the reaction that occurs when aspirin is heated with Naoh solution?
This is an acid-base reaction in which the acetylsalicylic acid reacts with the base sodium hydroxide to produce the salt sodium acetylsalicylate and water (acid + base → salt + water). To determine when the reaction is complete, students will use a small amount of the indicator phenolphthalein.
How do you calculate aspirin yield?
Using the theoretical and actual you can calculate percent yield.
- Actual Yield of Aspirin in lab after filtered/dried (mock value) = 370 g.
- Mass of Theoretical Yield of Aspirin (mock value) = 360.3 g.
- Percent Yield = (Actual ÷ Theoretical) x 100 = (370 ÷ 360.3) x 100 = 103 %
What is the solubility of aspirin in water?
Aspirin is slightly soluble in water: the solubility of aspirin in water is 0.33 grams per 100 mL water at room temperature.
How do you make aspirin?
To prepare aspirin, salicylic acid is reacted with an excess of acetic anhydride. A small amount of a strong acid is used as a catalyst which speeds up the reaction. In this experiment, phosphoric acid will be used as the catalyst. The excess acetic acid will be quenched with the addition of water.
What is the combination of reaction?
A combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product). Such reactions are represented by equations of the following form: X + Y → XY (A+B → AB).
What does NaOH do to aspirin?
Sodium hydroxide and acetylsalicylic acid neutralize each other in a 1:1 mole ratio to produce aqueous sodium acetylsalicylate and water.
What is titration of aspirin?
Aspirin is a weak acid that also undergoes slow hydrolysis; i.e., each aspirin molecule reacts with two hydroxide ions. To overcome this problem, a known excess amount of base is added to the sample solution and an HCl titration is carried out to determine the amount of unreacted base.