1. Ferric Chloride Test Add 5 drops of FeCl3 solution to 4 different test tubes containing 1 mL each of dilute solutions of the following compounds and note the color obtained. a. Phenol _______________________________________________________________ b. Salicyclic acid ___________________________________________________________ c. Resorcinol _______________________________________________________________ d. Picric acid _______________________________________________________________ 2. Millon’s Test Prepare another set of 4 test tubes containing 1 mL each of the solutions listed below. Add 3 drops of Millon’s reagent to each and place all the test tubes in a boiling water bath. Note the color formed. a. Phenol _______________________________________________________________ b. Salicylic acid ___________________________________________________________ c. Resorcinol _______________________________________________________________ d. Picric acid ____________________________________________________
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
E. TESTS FOR PHENOLIC COMPOUNDS
Phenolic compounds such as phenol, salicylic acid, etc., give characteristic
colors with FeCl3 and Millon’s Reagent.
1. Ferric Chloride Test
Add 5 drops of FeCl3 solution to 4 different test tubes containing 1 mL each of
dilute solutions of the following compounds and note the color obtained.
a. Phenol _______________________________________________________________
b. Salicyclic acid ___________________________________________________________
c. Resorcinol _______________________________________________________________
d. Picric acid _______________________________________________________________
2. Millon’s Test
Prepare another set of 4 test tubes containing 1 mL each of the solutions listed
below. Add 3 drops of Millon’s reagent to each and place all the test tubes in a
boiling water bath. Note the color formed.
a. Phenol _______________________________________________________________
b. Salicylic acid ___________________________________________________________
c. Resorcinol _______________________________________________________________
d. Picric acid _______________________________________________________________
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