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Chemistry reources
A2 CHEMISTRY - PAG 10.2 + 9.3 RATES
Elizabeth_B199Elizabeth_B199

A2 CHEMISTRY - PAG 10.2 + 9.3 RATES

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A resource created to assist teachers and students with delivery of the A2 OCR Chemistry PAGs. A PowerPoint to help you structure the beginning of the PAG lesson on 10.2 thiosulfate and acid. Can easily be amended and used as a template if preferred. Alternatively, this could be given to students as a guideline to assist them with their planning and calculations. Example results and graph for thiosulfate (part 1) included, showing the first order relationship. Possible extension opportunities include monitoring how temperature affects the rate of reaction - an Arrhenius plot could then be done as part of the analysis. Recommended for A-A* students. Gives students a checklist of what needs to be submitted. PowerPoint for PAG 9.3 rates attached also. This one includes OCR past paper questions (and answers) at the end as a plenary.
NEW L3 Applied Science Unit 19 - PRACTICAL - nitrate from soil UV spectroscopy
Elizabeth_B199Elizabeth_B199

NEW L3 Applied Science Unit 19 - PRACTICAL - nitrate from soil UV spectroscopy

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Attached is a full lesson 5 page worksheet containing a detailed step-by-step method (including how to use the UV-vis), introduction including theory on Beer’s Law, space for students to tabulate and record their results, questions around the topic, answers and sample results. There are a couple of photographs (taken by me when I was trialling this) to help students visualise how things should look when they are carrying out the method. This can take around 1 hour - 2.5 hour lesson depending on equipment availability and how you wish to deliver it. :-) Please leave a review!
U19 Applied Science AsB help for teachers - Quantitative IR spectroscopy
Elizabeth_B199Elizabeth_B199

U19 Applied Science AsB help for teachers - Quantitative IR spectroscopy

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Some pointers and ideas to help you devise a method and practical for the new unit 19 applied science unit. This practical is one of the 4 options for assignment B. I know that the use of IR for quantitative analysis is uncommon, but it can be done. Find attached a journal article of a similar experiment and a short outline of a method (word doc). Journal is obviously not my own work, I have just uploaded these to help centres devise their own methods for this assignment. I hope this is helpful for you. Please take a look at my other resources :-)
Laboratory design - school mini-project / STEM club activity
Elizabeth_B199Elizabeth_B199

Laboratory design - school mini-project / STEM club activity

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Laboratory design activity that could be used for an after school STEM club, mini science project, summer project or even a class task. Aimed at school level but can be as simple or challenging as you would like to make it :) A supporting PowerPoint is attached with ideas for student instructions ie group tasks visiting laboratories, what to focus on/take notes + photos of. This can be quite hands on and you can let students measure things and do conversions, creating keys and grids in their own laboratory design plans, if you have the facility to do so.
A2 Chem: acids, bases and pH.
Elizabeth_B199Elizabeth_B199

A2 Chem: acids, bases and pH.

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This resource is a lesson created for A2 Chemistry OCR syllabus which covers Bronsted - Lowry acids and bases, conjugate acid-base pairs, mono, di and tribasic acids, neutralisation reactions with acid: carbonates, metal oxides and alkalis. Includes theory, is interactive and has questions and answers. It has step-by-step guides to calculations and refers to OCR Chemistry textbook (states page numbers of summary questions to complete at end of teaching a mini-topic). Watch me teach the basics of part this topic at ‘PhysChem with Liz’ on YouTube: weak acids (calculations): strong acids (calculations): https://youtu.be/NTEa1sBThRg
Calculations (step by step) for  unit 19 learning outcome A - Analyte determination
Elizabeth_B199Elizabeth_B199

Calculations (step by step) for unit 19 learning outcome A - Analyte determination

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Attached are step-by-step calculations with equations, ratios, units etc which were created for the new unit 19 in the level 3 applied science course (new from 2016). The calculations are for the determination of bicarbonate in bottled water, the amount of copper in brass and the amount of iron in iron tablets. There are 3 stages to the bottled water practical, the end answer states the concentration of bicarbonate in water (tap water was used to save money!) in moles per decimetre cubed.
Feasibility, thermodynamics, redox, reduction potentials
Elizabeth_B199Elizabeth_B199

Feasibility, thermodynamics, redox, reduction potentials

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This bundle includes an assignment brief (created by me), lesson on thermodynamics and feasbility (can be easily adapted for what level/content you would like to teach) and answers to the last 4 assignment questions. This was created for a level 4 course where I taught chemistry to biology apprentices (ages 18+). The title of the unit was ‘chemistry for applied biologists’ and this is one of 4 assignments set in that unit. It could also be used for A2 Chemistry as there are some worked examples and practice questions on Gibbs free energy and 2 redox practicals which include half equations and observations.
Risk assessments: The why and how
Elizabeth_B199Elizabeth_B199

Risk assessments: The why and how

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This contains a (relatively!) exciting PowerPoint lesson around what can be a boring and tedious topic - risk assessments and safety. It includes case studies and scandal, what can happen when we are not aware of the risks involved. This is suitable for any science course at any level I have also included a very short lesson on authority and accountability i.e. academic fraud, this is also suitable for any course at any level. It was initially created for the old BTEC level 3 applied science, but is not specific to this :)
Determining the Fe content of iron tablets
Elizabeth_B199Elizabeth_B199

Determining the Fe content of iron tablets

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Student worksheet including introduction, method, space for them to record results, structured calculations and error analysis. Created for the new BTEC L3 spec, unit 19 Practical Chemical Analysis. Can also be used for A Level Chemistry, HNC or other analytical science courses.