Iron(III) chloride is used to test the purity of your aspirin. Why does salicylic acid reacts with iron(III) ions, Fe3+. Group of answer choicesimpure aspirin is highly concentrated with aspirinSalicylic acid contains a phenol groupaspirin reacts with any aqueous solutioniron and aspirin make violet
Question
Iron(III) chloride is used to test the purity of your aspirin. Why does salicylic acid reacts with iron(III) ions, Fe3+. Group of answer choicesimpure aspirin is highly concentrated with aspirinSalicylic acid contains a phenol groupaspirin reacts with any aqueous solutioniron and aspirin make violet
Solution
Salicylic acid reacts with iron(III) ions, Fe3+, because it contains a phenol group. The phenol group in salicylic acid can form a complex with Fe3+ ions, which results in a color change. This is often used as a test for the presence of phenols. Therefore, if the aspirin is pure, it should not react with the iron(III) chloride because it does not have a phenol group. However, if the aspirin is impure and contains salicylic acid, it will react with the iron(III) chloride and change color, indicating the presence of the phenol group.
Similar Questions
How is the purity of the aspirin assessed in this experiment?Question 1Answerby NMR spectroscopyfrom its solubilityby infrared spectroscopyfrom the colour produced by reaction with Fe3+from its melting point
Aspirin is known as :acetyl salicylic acidphenyl salicylateacetyl salicylatemethyl salicylic acid
Vr/hen HCI reacts with finely powdered iron, it forms ferrouschloride, and not ferric chloride. Explain, why ?
Aspirin (acetylsalicylic acid) was synthesised in the following experiment:8.25 g of salicylic acid (Msalicylic acid = 138.13 g mol–1) was reacted with 10.0 g of ethanoic anhydride (Manhydride = 102.10 g mol–1) in the presence of a concentrated sulfuric acid catalyst. 8.55 g of a white solid was collected at the end of the reaction.salicylic acid + ethanoic anhydride → acetylsalicylic acid + ethanoic acidCalculate the percentage yield of aspirin. State your answer to three significant figures. Maspirin = 180.17 g mol–1.
State the oxidation number of iron in iron(III) chloride.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.