Podcast
Questions and Answers
What indicator is used to detect the end point in the neutralization reaction involving NaOH?
What indicator is used to detect the end point in the neutralization reaction involving NaOH?
- Litmus
- Bromothymol blue
- Methyl orange
- Phenolphthalein (correct)
In the two-step neutralization reaction for CO3-2 like Na2CO3, what is the indicator used at the phenolphthalein end point?
In the two-step neutralization reaction for CO3-2 like Na2CO3, what is the indicator used at the phenolphthalein end point?
- Litmus
- Bromothymol blue
- Phenolphthalein (correct)
- Methyl orange
Why is a double-indicator method used for the analysis of compatible base mixtures?
Why is a double-indicator method used for the analysis of compatible base mixtures?
- To detect multiple end points accurately (correct)
- To make the reaction faster
- To reach different end points for each base
- To confuse the titration process
What laboratory data is typically available for titration analysis using the double-indicator method?
What laboratory data is typically available for titration analysis using the double-indicator method?
In a titration using phenolphthalein and methyl orange, what color change indicates the phenolphthalein end point?
In a titration using phenolphthalein and methyl orange, what color change indicates the phenolphthalein end point?
If a sample solution turns colorless after adding 25.6 mL of 0.5324 M HCl with phenolphthalein as an indicator, what additional volume of acid is needed for the color to change to pink with methyl orange?
If a sample solution turns colorless after adding 25.6 mL of 0.5324 M HCl with phenolphthalein as an indicator, what additional volume of acid is needed for the color to change to pink with methyl orange?
What is the appropriate indicator for a strong base with a weak acid?
What is the appropriate indicator for a strong base with a weak acid?
What is the pH range at the equivalence point for a weak base with a strong acid?
What is the pH range at the equivalence point for a weak base with a strong acid?
What is the main characteristic of the titration curve at the equivalence point for weak acid with weak base?
What is the main characteristic of the titration curve at the equivalence point for weak acid with weak base?
In titration analysis under neutralization methods, what is the purpose of using appropriate indicators?
In titration analysis under neutralization methods, what is the purpose of using appropriate indicators?
What is the significance of the titer-value in titration analysis?
What is the significance of the titer-value in titration analysis?
What method involves titrating analyte directly with a standard solution using an appropriate indicator?
What method involves titrating analyte directly with a standard solution using an appropriate indicator?
What is the main purpose of direct analysis in titration?
What is the main purpose of direct analysis in titration?
Which indicator is commonly used in direct analysis for the analysis of % Acetic Acid in vinegar?
Which indicator is commonly used in direct analysis for the analysis of % Acetic Acid in vinegar?
When is the double-indicator method applied in titration?
When is the double-indicator method applied in titration?
What is the significance of using two indicators in the double-indicator method?
What is the significance of using two indicators in the double-indicator method?
In the direct analysis of % Na2CO3 in soda ash sample, what is considered as the analyte?
In the direct analysis of % Na2CO3 in soda ash sample, what is considered as the analyte?
Why are OH- and HCO3- considered incompatible mixtures for double-indicator method applications?
Why are OH- and HCO3- considered incompatible mixtures for double-indicator method applications?
