MTC03 Chapter 8 Complexometric Titration Quiz

What are the key aspects evaluated in titrimetric analysis in laboratory settings?

• Color and taste

• Accuracy, precision, and clinical relevance

• Size and shape

• Weight and volume

Fill in the blank: Titrimetry involves the controlled addition of a _______ (the titrant) to a solution containing the analyte (the titrand) until the reaction reaches completion.

• reagent

• solvent

• indicator

• buffer

Fill in the blank: The theoretical point where the titrant has completely reacted stoichiometrically with the analyte is called the _______.

• Equivalence Point

• End Point

• Transition Point

• Neutralization Point

Fill in the blank: The experimentally observed point, typically detected by a color change or an instrumental signal, is called the _______.

• End Point

• Equivalence Point

• Titrant

• Indicator

The function of the pH electrode in the titrand's solution during an automated acid-base titration is:

• To measure the pH of the solution continuously

• To add acid or base to the solution

• To stir the solution during titration

• To indicate the endpoint visually

The blue line in the titration curve represents:

• the pH change during titration

• the volume of titrant added

• the temperature change during titration

• the concentration of the analyte

For clinical and pharmaceutical applications, why is it essential that the end point closely approximates the equivalence point in titrations?

• To avoid analytical errors that could lead to incorrect diagnoses or improper drug dosages.

• To increase the speed of the titration process.

• To reduce the cost of reagents used in titration.

• To make the color change more visually appealing.

What is the primary purpose of using a buret in titrimetric analysis?

• To precisely measure volumes of titrant to determine analyte quantities.

• To mix chemicals thoroughly during reactions.

• To heat solutions to specific temperatures.

• To store chemicals for long-term use.

What is the pH when 10.0 mL of NaOH is added to 50.0 mL of 0.100 M HCl?

• 12.10

• 2.00

• 7.00

• 9.50

Which indicator is colorless in acid and pink in base, with a pH range of 8.3–10.0?

• Methyl Orange

• Bromothymol Blue

• Phenolphthalein

• Litmus