Question

What do a chemical indicator and a buffer solution typically both contain​

Answer 1

Answer:

acids

Explanation:

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Answer 2

Answer:

A chemical indicator and a buffer solution both contain acid.

Explanation:

• Chemical indicator: A substance that gives a visible sign is called a chemical indicator.

• It may be a change in the color or presence and absence of threshold concentration of a chemical substance.

• For example: when methyl yellow is added to an alkaline solution, it imparts yellow. If it is an acid then it imparts red color.    

Buffer: An aqueous solution, consisting of a mixture of a weak acid and its salt (acid buffer) or a weak base with its salt (basic buffer).

• pH changes very little if a small amount of strong acid or base is added, preventing the change in the pH.  

• Solutions with a stable concentration of hydrogen ions there won't be any change in the pH, which is independent of dilution and will change very little when a small amount of strong acid or alkali is added, they are called buffers.

• Buffer is a solution that prevents change in pH change when a small amount of a strong acid or a strong base is added, it is called a buffer solution or a buffer.

• Both buffers have acidity and alkaline balance.

Example buffer solution with:

• weak acid and salt - CH₃COOH  and CH₃COONa

• strong acid and salt - NH₄OH and NH₄Cl.

Hence, a chemical indicator and a buffer solution contain acid.