Podcast
Questions and Answers
What is the purpose of back titration in acid-base titration?
What is the purpose of back titration in acid-base titration?
- To neutralize the excess titrant.
- To determine the end point precisely.
- To consume the analyte using excess titrant. (correct)
- To determine the initial concentration of the analyte.
In back titration, why is the end point intentionally overshot?
In back titration, why is the end point intentionally overshot?
- To speed up the reaction.
- To ensure all analyte is consumed. (correct)
- To create a visible color change for the indicator.
- To reduce the amount of titrant needed.
In compleximetric titration, what is a chelating agent?
In compleximetric titration, what is a chelating agent?
- The metal ion being titrated.
- The ligands that have two or more bonding sites. (correct)
- The EDTA ligand.
- Any neutral molecule used as a ligand.
What is the role of Eriochrome Black T in EDTA titrations?
What is the role of Eriochrome Black T in EDTA titrations?
How does EDTA react with metal ions in water hardness determination?
How does EDTA react with metal ions in water hardness determination?
Why is an ammonia buffer used in water hardness determination?
Why is an ammonia buffer used in water hardness determination?
What is the significance of the sharp increase in pH at the center of the titration curve?
What is the significance of the sharp increase in pH at the center of the titration curve?
In acid-base titration, what effect does a weaker acid (smaller Ka) have on the pH value at the equivalence point?
In acid-base titration, what effect does a weaker acid (smaller Ka) have on the pH value at the equivalence point?
What is the primary purpose of using acid-base indicators in titration?
What is the primary purpose of using acid-base indicators in titration?
What is unique about the neutralization process of sulfuric acid compared to phosphoric acid when titrated with OH- ions?
What is unique about the neutralization process of sulfuric acid compared to phosphoric acid when titrated with OH- ions?
How is alkalinity defined in the context of acid-neutralizing capacity?
How is alkalinity defined in the context of acid-neutralizing capacity?
What property makes a substance an ideal standard for titration?
What property makes a substance an ideal standard for titration?
In a titration, what is the titer of a titrant?
In a titration, what is the titer of a titrant?
What is the molarity of the hydrochloric acid solution if 0.600 g of primary standard NaOH was neutralized by 25.00 mL of HCl?
What is the molarity of the hydrochloric acid solution if 0.600 g of primary standard NaOH was neutralized by 25.00 mL of HCl?
What volume of 0.125 M HNO3 is needed to neutralize 0.300 g of Ca(OH)2 assuming one mole of HNO3 reacts with one mole of Ca(OH)2?
What volume of 0.125 M HNO3 is needed to neutralize 0.300 g of Ca(OH)2 assuming one mole of HNO3 reacts with one mole of Ca(OH)2?
What is the percent analyte in the sample if 20.02 mL of 0.0521 M NaOH was needed to neutralize 0.425 g of an acid?
What is the percent analyte in the sample if 20.02 mL of 0.0521 M NaOH was needed to neutralize 0.425 g of an acid?
