Doc Brown's Chemistry Clinic

OCR KS4 GCSE Applied Science

My unofficial support for the CHEMISTRY of the double award course

Year 10 and Year 11 OCR GCSE Applied Science Double Award syllabus-specification

At the start of your GCSE Science-CHEMISTRY course (via broadband at school or home) ...

... How much Chemistry and Earth Science have you remembered from KS3 Science?

My on-site help links on this page for the CHEMISTRY of the following syllabus specifications:

OCR GCSE Applied Science Double Award J648

Unit 1 Developing Scientific Skills * Unit 2 Science for the Needs of Society * Unit 3 Science at Work

My support links for the science-chemistry sections of OCR GCSE Applied Science Double Award (read Appendix):

OCR GCSE Applied Science Double Award

UNIT 1 DEVELOPING SCIENTIFIC SKILLS

Chemical Analysis

Qualitative Analysis

• The chemical identity tests page gives details for Na⁺, K⁺, Ca²⁺, Cu²⁺, Pb²⁺, Fe³⁺, Cl^-, SO₄^2-, CO₃^2- ions using reagents and/or flame tests.

• How to use paper/thin layer chromatography to determine composition is described on the Elements Compounds and Mixtures page and also on the Extra Organic Chemistry page. On the Extra Industrial Chemistry page gas-liquid chromatography (gc/glc) analysis is described .

Quantitative Analysis

• Part 11 chemistry calculations shows how to calculate the quantities to prepare solutions of specified concentrations using the units: g dm^-3 and mol dm^-3 

• There is a basic titration description on the Acids, Bases and salts page, though the context here is salt preparation rather than analysis.

• Part 12 chemistry calculations shows how to carry out a titration procedure and calculations to determine the concentration of an acidic/alkaline substance in solution.

OCR GCSE Applied Science Double Award

UNIT 2 SCIENCE FOR THE NEEDS OF SOCIETY

Section 2.3 Obtaining Useful chemicals

2.3.1 Useful Chemicals - The Building Blocks

• Elements, Compounds, Mixtures Notes - Much basic chemistry on this page e.g. definitions and examples of atoms, elements, compounds and mixtures, separation methods, physical & chemical changes and sections on 'how to understand and write chemical equations' and work out the formula of a compound.

• Atomic Structure Notes - the structure of atoms, isotopes, nuclear structure notation, electronic structure and the Periodic Table.

• The Periodic Table Notes - Explanation and overview of Groups, Periods, Series etc. with links to more detailed notes on the Group 1 Alkali Metals, Group 7 Halogens, Group 0 Noble Gases and Transition Metals.

• Appendix 1. Symbols and formulae of Elements and Compounds to know

• Oil and useful products - The hydrocarbons from oil, fuels, polymers/plastics.

• Extra Organic Chemistry Notes - more on organic compounds, synthetic and natural and their importance, also comparison with inorganic compounds.

• The Transition Metals and Uses of other metals - examples of useful metals.

• Ammonia synthesis and fertilisers - examples of useful inorganic chemicals.

2.3.2 Useful Chemicals - Using Raw Materials

• Extra Industrial Chemistry Notes - limestone and uses.

• Elements, Compounds, Mixtures Notes - includes the laboratory purification of salt.

• Oil and useful products - fractional distillation to separate products from oil and their uses.

• Notes on Extraction of Metals - the extraction of iron, some economic and environmental discussion points at the end of the page.

2.3.3 Chemical Manufacture

• Factors affecting the rates-speeds of chemical reactions - the factors affecting reaction rates, experimental methods for obtaining data, graphs, energy change-reaction profiles and activation energies. Associated Quizzes and worksheets. See also enzymes, energy changes

Section 2.4 Chemical and Material Behaviour

2.4.1 Mixtures

• Extra Aqueous Chemistry - Section 1. has brief notes on colloids.

2.4.2 Materials

• Material structure and Types of Chemical Bonding - Ionic, covalent (simple molecule, giant covalent structures, polymers) and metallic bonding (including alloys) theory and examples, physical properties of elements and compound explained.

• The Transition Metals and Uses of other metals - chemical and physical properties of them, uses of iron, copper, chromium etc., and a section on the uses and applications of other non-transition metals.

• Extra Industrial Chemistry Notes - uses of titanium.

• Oil and useful products - sections on polymers/plastics.

• Extra Organic Chemistry Notes - sections on polymers/plastic.

Section 2.5 Importance of Energy, Electricity and Radiation

2.5.1 Energy Resources -fuels

• Oil and useful products - fossil fuels. See also Alternative and Fossil Fuel Survey.

• Extra Organic Chemistry Notes - section 1. on burning organic compounds.

• Radioactivity and Nuclear Power - The structure of atoms linked to the properties and uses of alpha, beta and gamma radiation, radioisotope dating, half-life and explanation of fission/fusion nuclear reactions etc. Associated Quizzes and worksheets.

2.6 Earth and Universe

2.6.1 Planet Earth - the atmosphere

• Earth Science Notes - section 1. on atmosphere.

• Global warming discussion page.

2.6.2 Planet Earth - the surface

• Earth Science Notes - Sections 2., 7., 8. and 9. on plate tectonics etc.

OCR GCSE Applied Science Double Award

UNIT 3 SCIENCE AT WORK

Science in the workplace - Making Useful Products

• Notes on Acids, Bases, Alkalis, pH, Neutralisation and Salts - salt preparations and equations and also Extra Aqueous Chemistry - section 4. includes preparing insoluble salts.

• Chemical Calculations - 1. to 15. sections of explanation-examples and quizzes built into the notes. Sections 2. formula mass, sections 3. & 6. on reacting mass and % & theoretical yield, section 11. making up solutions, section 14. % & theoretical yield

• Extra notes on Electrochemistry  - an introduction to electrolysis, theory, electrolysis cells, industrial electrolysis process links summary, experimental methods for electrolysis like extracting/purifying copper.

• For industrial connections see Notes on Extraction of Metals and Ammonia synthesis uses like nitric acid and fertiliser salts

Appendix 1. Symbols and formulae of Elements and Compounds to know

but don't forget in equations the true molecular formula should be used

bromine Br₂, chlorine Cl₂, fluorine F₂, hydrogen H₂, nitrogen N₂, oxygen O₂

Element name and symbol quiz  *  easier KS3 science quiz

type in name quiz  or  type in formula quiz

APPENDIX: PLEASE READ THE FOLLOWING VERY CAREFULLY

 This unofficial page I'm designing provides links to useful Chemistry sections on My site for the UK KS4 Science - OCR GCSE Applied Science Double Award J648. Over the past 7 years I've written lots of notes for the previous GCSE courses, but I'm sure they will still prove useful for the CHEMISTRY of the new GCSE-KS4 Science courses. PLEASE remember the notes are NOT complete and not just for your particular syllabus, but are designed to cover, eventually, any Chemistry, Earth Science and Radioactivity of any GCSE syllabus-specification. Some sections will be useful, others less so, therefore make of my chemistry web pages what you can!

When you follow a link you will find some useful information on the web page about the topic you are researching. Sometimes the link goes straight to the relevant paragraph but otherwise use the sub-indexes of key words or headings at the top of each page. All the syllabus-topic-unit titles are taken from the official GCSE syllabus-specification which you can download from the OCR site. New word-fill worksheets and multiple choice (m/c) quizzes will be adapted from 'old' ones and new ones developed through 2008.

Further note that the new GCSE science-chemistry courses, particularly those in applied science, require much more detail in some topics than will appear in my notes, however, I hope my 'old' revision-information-research notes will help in some small way for individual students. My chemistry research-information-revision notes ALL are being slowly revised and extended-updated to cover the new chemistry material BUT I do not have time to deliver extended responses to email questions and please do NOT ask for past papers.

Other on-site link pages: OCR GCSE 21st Century Science Suite or OCR GCSE Gateway Science Suite

full syllabus from http://www.ocr.org.uk/  *  EMAIL query?comment

My other KS4/GCSE/IGCSE Science-Chemistry syllabus unofficial support links

Useful GCSE mini site-map of Doc Brown's Chemistry Clinic saveable to Desktop and all links work from Desktop

OCR GCE AS Chemistry NEW syllabus * OCR Salters AS Chemistry NEW syllabus * OCR A2 Chemistry * Salters A2 Chemistry

KS4 GCSE OCR Applied Science - Double Award * KS4 GCSE OCR Applied Science - Double Award *  KS4 GCSE OCR Applied Science - Double Award * Dr W P Brown *  KS4 GCSE OCR Applied Science - Double Award * KS4 GCSE OCR Applied Science - Double Award *  KS4 GCSE OCR Applied Science - Double Award

Copyright © Dr W P Brown 2000-2008 All rights reserved for the revision notes pages, quizzes, worksheets

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