Titration Video Questions

What is the purpose of a titration?

• To quantitatively determine the concentration of an unknown solution

• To identify the physical properties of a chemical substance

• To qualitatively determine the concentration of an unknown solution

• To measure the pH level of a given solution

What is used to mark the endpoint of a titration?

• An indicator

• A burette

• A volumetric pipette

• A wash bottle

Which piece of equipment is described as a long, narrow graduated tube used to add titrant?

• Burette

• Erlenmeyer flask

• Volumetric pipette

• Beaker

What is the best practice for preparing your burette for titration?

• Rinsing thoroughly with deionized water and then with a small amount of titrant

• Filling it with titrant without rinsing

• Rinsing thoroughly with tap water

• Using it directly without any preparation

What should you do if there is a lot of liquid clinging to the walls of the burette?

• Continue with the titration

• Thoroughly clean your burette and repeat the rinse process

• Shake the burette to remove the liquid

• Dry it with a paper towel

How should the volume on the burette be read?

• From the top of the meniscus at eye level

• From the bottom of the meniscus at eye level

• From the top of the meniscus from above

• Estimating without looking at eye level

What is the common laboratory practice for the first titration?

• It should be done without an indicator

• It should use the least amount of titrant

• It should be the most accurate

• It is an estimate

What indicates that the endpoint of a titration has been reached?

• When the analyte remains faintly colored

• When the burette is empty

• When the analyte becomes a dark colored solution

• When the analyte is still colorless

What should you do if the analyte is still colorless after adding titrant?

• Repeat the steps: add a drop, rinse, swirl, and record until a faint color persists

• Record the final volume and conclude the experiment

• Start the titration process over

• Increase the flow of titrant drastically

What is the recommended shape of flask for titrations and why?

• A conical flask, because it looks more scientific

• A volumetric flask, because it measures volume accurately

• A beaker, because it is easier to clean

• An Erlenmeyer flask, because its shape allows for more vigorous swirling and minimizes spill hazards