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WorksheetsTitration Video Questions
Total questions: 1
Worksheet time: 7mins
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
