In a titration to determine the presence of acetic acid, which indicator would b
Practice Questions
Q1
In a titration to determine the presence of acetic acid, which indicator would be most appropriate?
Phenolphthalein
Methyl orange
Bromothymol blue
Litmus
Questions & Step-by-Step Solutions
In a titration to determine the presence of acetic acid, which indicator would be most appropriate?
Step 1: Understand what a titration is. It is a method used to determine the concentration of a substance in a solution.
Step 2: Identify the substance being tested. In this case, it is acetic acid, which is a weak acid.
Step 3: Know what acetic acid is being titrated against. It is usually titrated against a strong base, like sodium hydroxide.
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 out the pH range where acetic acid and a strong base will react. This typically occurs around pH 8-10.
Step 6: Choose an appropriate indicator. Phenolphthalein is a good choice because it changes color in the pH range of 8.2 to 10, which is suitable for this titration.
Step 7: Conclude that phenolphthalein is the most appropriate indicator for this titration.
