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

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Laila

2/5/2023

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
...

2/5/2023

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

•

Feb 5, 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

Sign up to see the contentIt's free!

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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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

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

Android user

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

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

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

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

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Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

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

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This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

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