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Questions and Answers
What is the primary purpose of performing a titration?
What is the primary purpose of performing a titration?
- To determine the concentration of an unknown solution. (correct)
- To identify the components of a solution.
- To find the volume of a solution.
- To measure the temperature of a solution.
Which equipment is specifically used to contain the titrant during titration?
Which equipment is specifically used to contain the titrant during titration?
- Beaker
- Magnetic stirrer
- Burette (correct)
- Erlenmeyer flask
What signifies that the endpoint of the titration has been reached?
What signifies that the endpoint of the titration has been reached?
- The solid precipitate forms.
- The solution becomes colorless.
- There is a temperature change in the solution.
- The pH of the solution changes significantly. (correct)
In the titration calculation, which formula is used to find the concentration of the analyte?
In the titration calculation, which formula is used to find the concentration of the analyte?
Which indicator would you expect to use in a titration concerning a strong acid and a strong base?
Which indicator would you expect to use in a titration concerning a strong acid and a strong base?
In which industry is titration commonly applied?
In which industry is titration commonly applied?
What is the role of the magnetic stirrer during titration?
What is the role of the magnetic stirrer during titration?
What is the shape and characteristic feature of an Erlenmeyer flask?
What is the shape and characteristic feature of an Erlenmeyer flask?
Flashcards
Titration
Titration
A technique used to find the concentration of an unknown solution (analyte) by reacting it with a solution of known concentration (titrant).
Titrant
Titrant
The solution of known concentration used in titration to determine the concentration of the unknown solution.
Analyte
Analyte
The solution of unknown concentration that is being analyzed in titration.
Endpoint
Endpoint
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Indicator
Indicator
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Titration Calculation
Titration Calculation
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Applications of Titration
Applications of Titration
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Burette
Burette
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Study Notes
Titration
- Titration is an analytical technique used to find concentrations of acids or bases.
- Titration involves using a solution of known concentration (titrant), to determine the concentration of an unknown solution (analyte).
- You can determine the concentration of an unknown acid solution by using a solution of a base with a known concentration, or vice-versa.
- The titrant is added dropwise to the unknown solution, and the reaction between the two will change the pH of the solution.
- The endpoint of the titration is reached when the pH of the solution changes significantly, typically indicated by a color change of an indicator.
Equipment
- Burette: A graduated glass tube with a stopcock at the bottom.
- Erlenmeyer flask: A conical flask with a narrow neck.
- Beaker: A cylindrical glass container with a wide mouth.
- Magnetic stirrer: A device that uses a magnetic field to stir the solution.
- Stir bar: A small, magnetic bar used to stir the solution.
- Indicator: A substance that changes color when the pH of the solution changes.
Procedure
- Place a known volume of the unknown solution (analyte) in the flask.
- Add a few drops of indicator to the flask.
- Fill the burette with the titrant solution.
- Slowly drip titrant into the analyte solution, stirring constantly.
- Continue adding titrant until the indicator changes color (endpoint).
- Record the volume of titrant used.
Calculations
- The volume of titrant used is used to determine the concentration of the analyte solution, along with the concentration of the titrant and the volume of the analyte.
- The formula for calculating the concentration of an analyte in a titration is given by: (Concentration of titrant) x (Volume of titrant) / (Volume of analyte) = (Concentration of analyte).
Applications
- Titration can be used to determine the concentration of various substances.
- It can be used in various industries, including food, pharmaceutical, and manufacturing industries.
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