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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

378

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°C15.6°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

 

Chemistry

•

378

•

5 Feb 2023

•

6 pages

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

user profile picture

Laila

@lailaaa__

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... Show more

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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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

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Access to all documents

Improve your grades

Join milions of students

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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 contentIt'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 contentIt'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°C15.6°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 contentIt'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 contentIt'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 Na2S2O3aqaq + 2HClaqaq -> 2NaClaqaq + SO2gg + Sss

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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Stefan S

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This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

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Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

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