Which of the following indicators would be suitable for a titration between a st
Practice Questions
Q1
Which of the following indicators would be suitable for a titration between a strong acid and a strong base?
Methyl orange
Phenolphthalein
Litmus
Bromothymol blue
Questions & Step-by-Step Solutions
Which of the following indicators would be suitable for a titration between a strong acid and a strong base?
Step 1: Understand what a titration is. It is a method used to determine the concentration of a solution by adding another solution of known concentration.
Step 2: Identify the types of solutions involved. In this case, we have a strong acid (like hydrochloric acid) and a strong base (like sodium hydroxide).
Step 3: Know the pH range for strong acid and strong base reactions. The pH at the equivalence point (where the acid and base completely neutralize each other) is around 7.
Step 4: Learn about indicators. Indicators are substances that change color at a certain pH level, helping to show when the reaction is complete.
Step 5: Find an indicator that changes color around pH 7. Phenolphthalein is one such indicator that changes color between pH 7 and 10, making it suitable for this titration.
Step 6: Conclude that phenolphthalein is a good choice for indicating the endpoint of a titration between a strong acid and a strong base.
