The phenolphthalein pH indicator is clear and colorless in an acidic solution, but it turns a pink in a basic solution. Knowing this, you examine two clear and colorless solutions. One, you are told is acidic and the other is basic. Furthermore, you are told that the acidic solution contains phenolphthalein. So which is which? You don’t know because both solutions are colorless. To find out, you add a drop of Solution 1 to Solution 2. A pink color appears for a moment, but then disappears. This tells you that Select one: a. you now need to try adding Solution 2 to Solution 1. b. Solution 2 is acidic. c. Solution 1 is acidic. d. both solutions are now neutralized.
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.
The phenolphthalein pH indicator is clear and colorless in an acidic solution, but it turns a pink in a basic solution. Knowing this, you examine two clear and colorless solutions. One, you are told is acidic and the other is basic. Furthermore, you are told that the acidic solution contains phenolphthalein. So which is which? You don’t know because both solutions are colorless. To find out, you add a drop of Solution 1 to Solution 2. A pink color appears for a moment, but then disappears. This tells you that
Select one:
a. you now need to try adding Solution 2 to Solution 1.
b. Solution 2 is acidic.
c. Solution 1 is acidic.
d. both solutions are now neutralized.
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