Define the term pure substance .

Slides:

Advertisements

Similar presentations

 Red Ink --> Answers  Blue Ink --> Teacher’s Explanation.

Advertisements

© NTScience.co.uk 2005KS3 Unit 7h - Solutions1 Solutions.

TOPIC: Methods of Separating Mixtures Essential Question: What are the different ways of separating mixture? This ppt introduces and reviews ways of separating.

1 Identify the different types of solutions Identify the different types of solutions Investigate experimentally the effect of structure and temperature.

MATERIALS MODULE 01a (ii) PARTICULATE NATURE OF MATTER.

Mixtures vs Pure Substances. What are these pictures of?

Methods of Separating Mixtures Grade 9 Science Mixtures can be separated by physical means…

Miss Fogg Chromatography Chromatography (from Greek word for chromos for color) is a laboratory technique for the physical separation of a mixture.

Mixtures and Solutions Notes  Pure substance: matter that has definite chemical and physical properties  Mixture: matter that contains two or more substances.

Section 2.3 Classifying Matter 1.To learn to distinguish between mixtures and pure substances. 2.To identify homogeneous and heterogeneous mixtures. Objectives.

Separation Techniques QUIZ Questions. Which technique can be used to separate 2 liquids with different boiling points? Distillation 1.

Chapter 19 Separating Mixtures A mixture consists of two or more substances mingled together but not chemically combined. Examples of mixtures: Sea water.

Chapter 3 Objectives. OBJECTIVES 1. Describe how particles move in the 3 phases of matter. 2. Explain how, as temperature increases, particles move faster.

1 st Year Science – Chemistry. Separating Mixtures – Introduction Mixtures: ‘ A mixture is made up of 2 or more substances mingled together but not chemically.

Separating Mixtures Must be a difference in physical properties to separate a mixture.

Click hexagons once to change to blue Twice to change to white Click a third time to restore.

Desert Island Survival Challenge Describe how you could get drinkable fresh water from salt water.

Warm-up Iron reacts with oxygen to form rust 1. Write the reaction with element symbols 2. Circle the reactants, box the products 3. If 20.1 g of iron.

Today’s aims Understand what chromatography is. Understand how chromatography used in everyday life 10 December 2013 Today’s Title: Chromatography.

Separating Mixtures Differences in physical properties can be used to separate mixtures What are some physical properties we can use to separate mixtures?

Pure Substances and Mixtures

C2 Topic 3: Covalent Bonding and Separation

A covalent bond as a pair of electrons shared between two atoms

CHROMATOGRAPHY.

Define - Physical change? Give an example of a Physical change.

Warm-up Iron reacts with oxygen to form rust

Aim: How to identify types of matter? Do Now:

Chemistry Paper 1 Paper 1 (November Mock) has the following topics :

Basic Chemistry Chapter 3 Matter and Energy Chapter 3 Lecture

Chemical Analysis AQA 2016 Chemistry topic 8 W Richards

Separation Techniques

Question 1 What do each of the 3 hazard warning symbols below mean?

What type of reaction is this?

Separating Mixtures Plenary.

What type of reaction is this?

Purity, formulations and chromatography

Separation of mixtures

Chemistry definition of PURE NOT PURE How do you know if something is pure? If an element or a compound is pure and not a mixture then it will melt.

Trilogy – Chemistry – CHAPTER 8 – Chemical analysis - H

How can we separate mixtures?

Separating mixtures MARTIN 2011.

Topic – Separating substances

18/01/2019 Solutions KRS.

EDEXCEL TOPIC 2: STATES OF MATTER AND MIXTURES 1

Applications in Forensic Science

C2 Topic 3: Covalent Bonding and Separation

27/02/2019 Solutions KRS.

Applications in Forensic Science

Aim: How to identify types of matter? Do Now: Prepare for quiz (5 min)

Chromatography.

Edexcel GCSE States of matter and mixtures

Big Q: What do I know for the Matter test?

Edexcel Topic – States of matter and mixtures

28/04/2019 Solutions.

Mixtures and Separations

Chemistry 5.2. Bonding and Properties

What is an element? Particle Relative charge Relative mass

Solutions: Chromatography

23/05/2019 Solutions.

Mixture – physical blend of two or more substances

Learning Objective Carry out and describe chromatography

C8: Chemical Analysis Key Concepts.

Lesson 1 States of matter Lesson 2 Heating / Cooling curves

Physics Chapter 3 – Particle model of matter – particle model, changes of state, internal energy and motion in gases. Draw the particle model of matter.

Chemistry Chapter 6 – The rate and extent of chemical change – measuring rates, calculating rates and factors affecting rates State 3 ways of measuring.

Define the terms: Endothermic reaction Exothermic reaction

15/09/ /09/2019 Chemical Analysis AQA 2016 Chemistry topic 8.

Presentation transcript:

Chemistry Chapter 8 –Chemical analysis – pure substances, formulations and testing for gases Define the term pure substance . Describe how to separate water and ethanol. Using distillation Describe what a formulation, why they are important in medicines and give other examples. Describe the difference between a pure substance and a mixture. Describe how to separate 2 soluble substances. State physical processes for separating mixtures. State the tests for the below: Oxygen – Hydrogen – Carbon dioxide – Chlorine – Draw 2 graphs to show a pure substance boiling and an impure substance boiling. Describe briefly how to separation a solid from a solution using filtration and crystallisation

Chemistry Chapter 8 – Chemical analysis– RP and maths State the equation to calculate Rf values. Independent variable – Dependent variable – Control variables – Describe a method used to investigate chromatography to identify ink mixtures. Include a diagram of your set up. Write a risk assessment for this practical. Include the risk, hazard and control for at least 1 risk. State the numbers below to 1 significant figure (sf) 41 8.6 0.478 0.74 15 State the numbers below to 2 sf. 0.589 457 8.45 89.5 102 State the numbers below to 3 sf. 0.7521 1589 896.7 97.82 102.6 Calculate the Rf value when the red spot moved 4.1 cm and the distance the solvent moved is 12.5cm. Show your working out. Explain why some colours travel further than others.