How to Make a Volumetric Solution for Titration

Open

Laila

05/02/2023

Chemistry

Required Practical 1

Subjects

Chemistry

Physical chemistry

Amount of substance

Balanced equations and associated calculations

How to Make a Volumetric Solution for Titration

A comprehensive step by step guide for sodium hydrogen sulfate titration and preparation of volumetric solutions for accurate concentration determination in acid-base reactions.

The practical demonstrates how to make a volumetric solution for acid-base titration using sodium hydrogen sulfate (NaHSO4) and sodium hydroxide (NaOH)
The experiment utilizes phenolphthalein as an indicator which changes from pink/purple to colorless at the endpoint
The process involves precise measurements, careful solution preparation, and multiple titrations to calculate concentration in a chemistry titration experiment
Safety considerations and proper handling of corrosive materials are emphasized throughout the procedure
The method requires careful attention to detail in measurements and calculations to ensure accurate results

05/02/2023

Required Practical 1: Make up a volumetric solution and carry out a simple
acid-base titration
Introduction
Aim: To make an accurate volumet

Part 2: Equipment Setup and Initial Measurements

This section details the proper setup of titration apparatus and initial solution measurements. The arrangement of equipment is crucial for accurate results.

Vocabulary: Titrant - The solution of known concentration added from the burette Vocabulary: Analyte - The solution of unknown concentration being analyzed

The setup includes proper positioning of the burette, stand, and clamp, along with preparation of both sodium hydrogen sulfate and sodium hydroxide solutions.

View

Part 3: Titration Procedure and Data Collection

The detailed titration procedure explains the step-by-step process of determining the unknown concentration.

Highlight: Multiple titrations are performed to ensure accuracy, with the first serving as a rough estimate.

Definition: The endpoint is reached when a permanent color change occurs, indicating complete neutralization.

The process includes careful measurement of 25.0cm³ of sodium hydroxide solution and systematic addition of sodium hydrogen sulfate while monitoring color changes.

View

Part 4: Calculations and Safety Considerations

This section focuses on the mathematical aspects of determining concentration and important safety protocols.

Highlight: When calculating the mean volume, the first rough titration and any outlying results are excluded.

Example: Titrations must be within 0.1cm³ of each other to be considered valid for calculations.

The risk assessment portion emphasizes the hazardous nature of the chemicals used:

Quote: "Corrosive to eyes - can cause serious eye damage"

View

Part 5: Final Calculations and Analysis

The concluding section guides students through the final calculations to determine the unknown concentration of sodium hydroxide.

Definition: The concentration calculation uses the balanced equation and the precise volumes measured during titration.

Highlight: Accuracy in recording and calculating results is crucial for reliable concentration determination.

The practical emphasizes the importance of showing all working steps in calculations and maintaining precise measurement records.

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Subjects

Chemistry

Physical chemistry

Amount of substance

Balanced equations and associated calculations

How to Make a Volumetric Solution for Titration

Laila

@lailaaa__

33 Followers

A comprehensive step by step guide for sodium hydrogen sulfate titration and preparation of volumetric solutions for accurate concentration determination in acid-base reactions.

The practical demonstrates how to make a volumetric solution for acid-base titration using sodium hydrogen sulfate (NaHSO4) and sodium hydroxide (NaOH)
The experiment utilizes phenolphthalein as an indicator which changes from pink/purple to colorless at the endpoint
The process involves precise measurements, careful solution preparation, and multiple titrations to calculate concentration in a chemistry titration experiment
Safety considerations and proper handling of corrosive materials are emphasized throughout the procedure
The method requires careful attention to detail in measurements and calculations to ensure accurate results

...

05/02/2023

415

12/13

Chemistry

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Part 2: Equipment Setup and Initial Measurements

This section details the proper setup of titration apparatus and initial solution measurements. The arrangement of equipment is crucial for accurate results.

Vocabulary: Titrant - The solution of known concentration added from the burette Vocabulary: Analyte - The solution of unknown concentration being analyzed

The setup includes proper positioning of the burette, stand, and clamp, along with preparation of both sodium hydrogen sulfate and sodium hydroxide solutions.

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Part 3: Titration Procedure and Data Collection

The detailed titration procedure explains the step-by-step process of determining the unknown concentration.

Highlight: Multiple titrations are performed to ensure accuracy, with the first serving as a rough estimate.

Definition: The endpoint is reached when a permanent color change occurs, indicating complete neutralization.

The process includes careful measurement of 25.0cm³ of sodium hydroxide solution and systematic addition of sodium hydrogen sulfate while monitoring color changes.

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Part 4: Calculations and Safety Considerations

This section focuses on the mathematical aspects of determining concentration and important safety protocols.

Highlight: When calculating the mean volume, the first rough titration and any outlying results are excluded.

Example: Titrations must be within 0.1cm³ of each other to be considered valid for calculations.

The risk assessment portion emphasizes the hazardous nature of the chemicals used:

Quote: "Corrosive to eyes - can cause serious eye damage"

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Join milions of students

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Part 5: Final Calculations and Analysis

The concluding section guides students through the final calculations to determine the unknown concentration of sodium hydroxide.

Definition: The concentration calculation uses the balanced equation and the precise volumes measured during titration.

Highlight: Accuracy in recording and calculating results is crucial for reliable concentration determination.

The practical emphasizes the importance of showing all working steps in calculations and maintaining precise measurement records.

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Part 1: Introduction and Solution Preparation

This section outlines the fundamental setup for preparing an accurate volumetric solution for titration analysis. The reaction between sodium hydrogen sulfate and sodium hydroxide is explained, along with the role of phenolphthalein indicator.

Definition: A volumetric solution is a precisely concentrated solution used for quantitative chemical analysis.

Example: The reaction equation demonstrates the process: NaHSO4 + NaOH -> Na2SO4 + H2O

Highlight: Phenolphthalein serves as the indicator, changing from pink/purple to colorless at the endpoint.

The equipment list includes essential items such as a volumetric flask, weighing boat, digital balance, and various measuring tools needed for precise solution preparation.

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Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

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App Store

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Average app rating

20 M

Pupils love Knowunity

#1

In education app charts in 17 countries

950 K+

Students have uploaded notes

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iOS User

I love this app so much, I also use it daily. I recommend Knowunity to everyone!!! I went from a D to an A with it :D

Philip, iOS User

The app is very simple and well designed. So far I have always found everything I was looking for :D

Lena, iOS user

How to Make a Volumetric Solution for Titration

Part 2: Equipment Setup and Initial Measurements

Part 3: Titration Procedure and Data Collection

Part 4: Calculations and Safety Considerations

Part 5: Final Calculations and Analysis

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Knowunity is the #1 education app in five European countries

Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

4.9+

20 M

#1

950 K+

Still not convinced? See what other students are saying...

I love this app so much, I also use it daily. I recommend Knowunity to everyone!!! I went from a D to an A with it :D

The app is very simple and well designed. So far I have always found everything I was looking for :D

I love this app ❤️ I actually use it every time I study.

How to Make a Volumetric Solution for Titration

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Part 2: Equipment Setup and Initial Measurements

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Part 3: Titration Procedure and Data Collection

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Part 4: Calculations and Safety Considerations

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Part 5: Final Calculations and Analysis

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Part 1: Introduction and Solution Preparation

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Knowunity is the #1 education app in five European countries

Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

4.9+

20 M

#1

950 K+

Still not convinced? See what other students are saying...

I love this app so much, I also use it daily. I recommend Knowunity to everyone!!! I went from a D to an A with it :D

The app is very simple and well designed. So far I have always found everything I was looking for :D

I love this app ❤️ I actually use it every time I study.