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Fun Ways to Test Gases and Learn About Chemistry Basics!

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Eliza Haigh

16/03/2023

Chemistry

Chemistry year 9 introductory unit

Subjects

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Chemistry

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Pure & impure substances

/

Chromatography

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Separating dissolved solids using chromatography

Fun Ways to Test Gases and Learn About Chemistry Basics!

This document provides an overview of key concepts in introductory chemistry, focusing on understanding elements, compounds, and mixtures in chemistry as well as methods for separating and identifying substances. It covers various testing techniques including how to test gases using crystallisation and chromatography, along with definitions of fundamental chemical terms.

  • Elements, compounds, and mixtures are defined and differentiated
  • Gas testing methods for hydrogen, oxygen, carbon dioxide, and chlorine are outlined
  • Separation techniques such as crystallisation, distillation, and chromatography are explained
  • The process and calculations for chromatography are detailed
...

16/03/2023

149

Testing for gases: fibration is used A FO mulation is a mixture Hydrogen ut Splint to seperate insoluble that has been specifically, designe

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Chromatography and Distillation Techniques

This page delves deeper into the separation techniques of distillation and chromatography, providing detailed diagrams and explanations of the processes involved in each method.

Distillation is presented as a method for separating a mixture of liquids. The diagram shows the essential components of a distillation apparatus, including a thermometer, condenser, and collection flask. The process relies on the different boiling points of the liquids in the mixture.

Highlight: In distillation, liquids are separated according to their boiling points.

Chromatography is explained in more detail, with before and after diagrams illustrating the steps for performing chromatography in chemistry. The process involves:

  1. Drawing a pencil line on chromatography paper
  2. Placing ink spots on the pencil line
  3. Placing the paper in a beaker with a small amount of solvent (water or other)
  4. Allowing the solvent to travel up the paper, separating the components of the ink

Definition: In chromatography, the stationary phase is the paper, while the mobile phase is the water or other solvent used.

The page also introduces the concept of Rf value in chromatography:

Definition: Rf Value = distance moved by substance / distance moved by solvent

Highlight: Rf value has no units and is used to identify and compare substances in chromatography.

This detailed explanation of chromatography and distillation provides students with a clear understanding of these important separation techniques in chemistry.

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Subjects

/

Chemistry

/

Pure & impure substances

/

Chromatography

/

Separating dissolved solids using chromatography

Fun Ways to Test Gases and Learn About Chemistry Basics!

E

Eliza Haigh

@elizahaigh_ngxf

·

12 Followers

Follow

This document provides an overview of key concepts in introductory chemistry, focusing on understanding elements, compounds, and mixtures in chemistry as well as methods for separating and identifying substances. It covers various testing techniques including how to test gases using crystallisation and chromatography, along with definitions of fundamental chemical terms.

  • Elements, compounds, and mixtures are defined and differentiated
  • Gas testing methods for hydrogen, oxygen, carbon dioxide, and chlorine are outlined
  • Separation techniques such as crystallisation, distillation, and chromatography are explained
  • The process and calculations for chromatography are detailed
...

16/03/2023

149

 

9

 

Chemistry

9

Testing for gases: fibration is used A FO mulation is a mixture Hydrogen ut Splint to seperate insoluble that has been specifically, designe

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Access to all documents

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Join milions of students

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Chromatography and Distillation Techniques

This page delves deeper into the separation techniques of distillation and chromatography, providing detailed diagrams and explanations of the processes involved in each method.

Distillation is presented as a method for separating a mixture of liquids. The diagram shows the essential components of a distillation apparatus, including a thermometer, condenser, and collection flask. The process relies on the different boiling points of the liquids in the mixture.

Highlight: In distillation, liquids are separated according to their boiling points.

Chromatography is explained in more detail, with before and after diagrams illustrating the steps for performing chromatography in chemistry. The process involves:

  1. Drawing a pencil line on chromatography paper
  2. Placing ink spots on the pencil line
  3. Placing the paper in a beaker with a small amount of solvent (water or other)
  4. Allowing the solvent to travel up the paper, separating the components of the ink

Definition: In chromatography, the stationary phase is the paper, while the mobile phase is the water or other solvent used.

The page also introduces the concept of Rf value in chromatography:

Definition: Rf Value = distance moved by substance / distance moved by solvent

Highlight: Rf value has no units and is used to identify and compare substances in chromatography.

This detailed explanation of chromatography and distillation provides students with a clear understanding of these important separation techniques in chemistry.

Testing for gases: fibration is used A FO mulation is a mixture Hydrogen ut Splint to seperate insoluble that has been specifically, designe

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

Chemistry: Introductory Unit

This page introduces fundamental concepts in chemistry, focusing on the classification of substances and various testing and separation methods. It covers the definitions of elements, compounds, mixtures, and formulations, as well as techniques for identifying specific gases and separating different types of mixtures.

Definition: A pure substance is made from just one type of element or compound.

Definition: A mixture is made from two or more different elements or compounds that are not chemically joined.

Definition: A formulation is a mixture that has been specifically designed to produce a useful product, such as paint or medicines.

The page outlines several methods for testing gases:

  • Hydrogen: "Squeaky pop" test
  • Oxygen: Glowing splint test
  • Carbon dioxide: Bubble through limewater
  • Chlorine: Damp litmus paper turns white

Various separation techniques are also introduced:

  • Crystallisation: Used to separate soluble solids from a solution
  • Distillation: Used to separate a mixture of liquids
  • Chromatography: Used to separate a mixture of substances that can be dissolved in the same solvent, such as inks

Highlight: Chromatography is a key technique in chemistry for separating and analyzing mixtures.

The page concludes with definitions of fundamental chemical concepts:

Definition: An element is a substance made from one type of atom.

Definition: A compound is a substance containing two or more elements chemically joined together in fixed proportions.

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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.