Which of the following indicators is most suitable for a strong acid-strong base
Practice Questions
Q1
Which of the following indicators is most suitable for a strong acid-strong base titration?
Phenolphthalein
Methyl orange
Bromothymol blue
Litmus
Questions & Step-by-Step Solutions
Which of the following indicators is most suitable for a strong acid-strong base titration?
Correct Answer: Bromothymol blue
Step 1: Understand what a titration is. A titration is a method used to determine the concentration of a solution by adding a solution of known concentration until a reaction is complete.
Step 2: Identify what a strong acid and a strong base are. A strong acid completely dissociates in water (like hydrochloric acid), and a strong base also completely dissociates (like sodium hydroxide).
Step 3: Know what the equivalence point is. The equivalence point in a titration is when the amount of acid equals the amount of base, resulting in a neutral solution.
Step 4: Learn about pH and color indicators. pH is a measure of how acidic or basic a solution is, and color indicators change color at certain pH levels.
Step 5: Find out which indicators are suitable for strong acid-strong base titrations. Bromothymol blue is one such indicator that changes color around pH 7, which is where the equivalence point occurs for strong acid-strong base titrations.
Step 6: Conclude that bromothymol blue is the most suitable indicator for strong acid-strong base titrations.
