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Fun Chemistry: See How Temperature Changes the Reaction Between Sodium Thiosulfate and Acid!

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Laila

05/02/2023

Chemistry

Required Practical 3

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Chemistry

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Physical chemistry

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Kinetics

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Effect of temperature on reaction rate

Fun Chemistry: See How Temperature Changes the Reaction Between Sodium Thiosulfate and Acid!

A comprehensive investigation of sodium thiosulfate reaction with hydrochloric acid temperature effect demonstrating how reaction rates change with temperature variations. This practical chemistry experiment explores the relationship between temperature and reaction speed using sulfur precipitation.

  • The experiment involves mixing sodium thiosulfate with hydrochloric acid at different temperatures
  • Measuring reaction rates using sulfur precipitate method is achieved by timing how long it takes for a cross to disappear beneath the reaction vessel
  • Results clearly demonstrate that higher temperatures lead to faster reaction rates
  • The study employs careful control of variables including volume and concentration to ensure reliable results
  • Safety considerations and proper equipment handling are emphasized throughout the procedure
...

05/02/2023

377

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

View

Equipment and Methodology

The experimental procedure requires careful attention to detail and specific equipment setup. The method involves precise measurements and temperature control.

Vocabulary: Water bath - A container of water used to control the temperature of the reaction mixture.

Highlight: Key equipment includes:

  • Glass thermometer
  • 400cm³ beaker for water bath
  • Plastic container with lid
  • Glass tubes
  • Measuring cylinders
  • Solutions of sodium thiosulfate and hydrochloric acid

Example: The experiment requires 10cm³ of 1 mol dm³ hydrochloric acid and 10cm³ of 0.05 mol dm³ sodium thiosulfate solution for each trial.

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

View

Safety Considerations and Risk Assessment

A comprehensive overview of safety protocols and hazard management for all chemicals and equipment used in the experiment.

Highlight: All participants must wear appropriate personal protective equipment including eye protection and rubber gloves.

Definition: Corrosive substances - Materials that can cause immediate damage to living tissue upon contact.

Example: Emergency procedures for chemical contact include:

  • Eye contact: Immediate flushing with eyewash
  • Skin contact: Washing with water and removing contaminated clothing
  • Ingestion: Not inducing vomiting and seeking medical attention
solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

View

Page 3: Safety Considerations

This page focuses on crucial safety protocols and hazard assessments for handling the chemicals involved in the experiment.

Highlight: Hydrochloric acid and sodium thiosulfate require careful handling due to their corrosive and irritant properties.

Quote: "Damage is often irreversible or even fatal" - regarding the handling of corrosive substances.

Definition: Proper safety equipment including face shields, eye protection, and rubber gloves must be worn when handling these chemicals.

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

View

Page 4: Results and Data Analysis

The experimental results are presented in tabular form with detailed temperature measurements and time recordings.

Example: At room temperature (15.6°C), the average reaction time was 147.5 seconds, while at 55°C, it decreased to just 18.5 seconds.

Highlight: The data shows a clear inverse relationship between temperature and reaction time.

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

View

Page 5: Evaluation and Conclusions

The final section provides a comprehensive analysis of the experimental outcomes and methodology effectiveness.

Definition: Independent variable: temperature; Dependent variable: time; Control variables: volume, concentration, and cross position.

Highlight: The results conclusively demonstrate that higher temperatures lead to faster reaction rates.

Example: Suggested improvements include using a digital thermometer for more precise temperature measurements.

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Subjects

/

Chemistry

/

Physical chemistry

/

Kinetics

/

Effect of temperature on reaction rate

Fun Chemistry: See How Temperature Changes the Reaction Between Sodium Thiosulfate and Acid!

user profile picture

Laila

@lailaaa__

·

33 Followers

Follow

A comprehensive investigation of sodium thiosulfate reaction with hydrochloric acid temperature effect demonstrating how reaction rates change with temperature variations. This practical chemistry experiment explores the relationship between temperature and reaction speed using sulfur precipitation.

  • The experiment involves mixing sodium thiosulfate with hydrochloric acid at different temperatures
  • Measuring reaction rates using sulfur precipitate method is achieved by timing how long it takes for a cross to disappear beneath the reaction vessel
  • Results clearly demonstrate that higher temperatures lead to faster reaction rates
  • The study employs careful control of variables including volume and concentration to ensure reliable results
  • Safety considerations and proper equipment handling are emphasized throughout the procedure
...

05/02/2023

377

 

12/13

 

Chemistry

10

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

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Access to all documents

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Join milions of students

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Equipment and Methodology

The experimental procedure requires careful attention to detail and specific equipment setup. The method involves precise measurements and temperature control.

Vocabulary: Water bath - A container of water used to control the temperature of the reaction mixture.

Highlight: Key equipment includes:

  • Glass thermometer
  • 400cm³ beaker for water bath
  • Plastic container with lid
  • Glass tubes
  • Measuring cylinders
  • Solutions of sodium thiosulfate and hydrochloric acid

Example: The experiment requires 10cm³ of 1 mol dm³ hydrochloric acid and 10cm³ of 0.05 mol dm³ sodium thiosulfate solution for each trial.

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

Sign up to see the content. It's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Safety Considerations and Risk Assessment

A comprehensive overview of safety protocols and hazard management for all chemicals and equipment used in the experiment.

Highlight: All participants must wear appropriate personal protective equipment including eye protection and rubber gloves.

Definition: Corrosive substances - Materials that can cause immediate damage to living tissue upon contact.

Example: Emergency procedures for chemical contact include:

  • Eye contact: Immediate flushing with eyewash
  • Skin contact: Washing with water and removing contaminated clothing
  • Ingestion: Not inducing vomiting and seeking medical attention
solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

Sign up to see the content. It's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Page 3: Safety Considerations

This page focuses on crucial safety protocols and hazard assessments for handling the chemicals involved in the experiment.

Highlight: Hydrochloric acid and sodium thiosulfate require careful handling due to their corrosive and irritant properties.

Quote: "Damage is often irreversible or even fatal" - regarding the handling of corrosive substances.

Definition: Proper safety equipment including face shields, eye protection, and rubber gloves must be worn when handling these chemicals.

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

Sign up to see the content. It's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Page 4: Results and Data Analysis

The experimental results are presented in tabular form with detailed temperature measurements and time recordings.

Example: At room temperature (15.6°C), the average reaction time was 147.5 seconds, while at 55°C, it decreased to just 18.5 seconds.

Highlight: The data shows a clear inverse relationship between temperature and reaction time.

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

Sign up to see the content. It's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Page 5: Evaluation and Conclusions

The final section provides a comprehensive analysis of the experimental outcomes and methodology effectiveness.

Definition: Independent variable: temperature; Dependent variable: time; Control variables: volume, concentration, and cross position.

Highlight: The results conclusively demonstrate that higher temperatures lead to faster reaction rates.

Example: Suggested improvements include using a digital thermometer for more precise temperature measurements.

solx, 5500 5000 4500 4000 3500 2500 2000 1500 1000 500 O 10 10 X it against temperature 20 X-X 30 40 x 50 Temperature /°C 18 Required Practi

Sign up to see the content. It's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Introduction and Experimental Setup

This section outlines the fundamentals of this practical chemistry experiment reaction rate temperature investigation. The reaction between sodium thiosulfate and hydrochloric acid produces a sulfur precipitate, which is used to measure reaction rates at different temperatures.

Definition: The reaction equation is Na2S2O3(aq) + 2HCl(aq) -> 2NaCl(aq) + SO2(g) + S(s)

Highlight: The reaction rate is measured by timing how long it takes for a black cross underneath the reaction vessel to become obscured by sulfur precipitate.

Example: The initial rate of reaction is proportional to 1/time, as the amount of sulfur produced is constant across all temperature variations.

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Can't find what you're looking for? Explore other subjects.

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.

Ranked #1 Education App

Download in

Google Play

Download in

App Store

Knowunity is the #1 education app in five European countries

4.9+

Average app rating

20 M

Pupils love Knowunity

#1

In education app charts in 17 countries

950 K+

Students have uploaded notes

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

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

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