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Preparing a Stock Solution
This presentation and student practical sheet guide students through the technique of preparing a stock solution of NaOH for titration against a primary standard (KHP).
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Titration Technique & Calculations
This lesson focuses on why and how titration is used as well as a 5 step process students can follow to scaffold their calculations.
Resource include presentation and worksheet with answers.
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Reactivity 3.1.16 & 3.1.17 Buffers
This lesson pack introduces students to buffers, including an example in the body, plus calculation worksheet (with mark scheme) and student practical sheet to make their own buffer solution (recapping basic stoichiometry and making stock solutions) as well as comparing final pH of buffer using pH meter.
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Reactivity 3.1.14 & 3.1.15 Indicators
This presentation and student practical sheet looks through qualities of indicators and factors considered when selecting an appropriate indicator. The student practical sheet gets students to make ammonium sulphate using titration and methyl orange and also includes past questions with mark scheme.
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Reactivity 3.1.13 pH Curves (HL)
This presentation and student practical sheet looks at all the possible pH curves produced from the possible strong/weak acid and base combinations. They student practical sheet runs students through adding sodium hydroxide to ethanoic acid and separately ammonia with hydrochloric acid.
The practical explains mathematically why pH = pKa at the half equivalence point.
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Reactivity 3.1.10 & 3.1.11 Ka, Kb, pKa & pKb
This presentation spans a series of lessons (2-3) covering the expressions of Ka and Kb and their magnitude. Slides contain modeled answers and questions for students to try, along with answer slides.
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Empirical Formula Bundle
All empirical formula resources which cover:
How to calculate empirical formula from mass or percentage composition
How to calculate empirical formula from experimental data and associated sources of error and calculating uncertainty
Water of crystallisation - preparing and analysing magnesium sulphate (includes a 20 mark formative assessment with mark scheme).
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Back Titration of Aspirin lesson pack
This presentation and student practical sheet guide students through preparing a stock solution of hydrolysed aspirin which is then titrated against HCl to enable moles of aspirin to be determined.
IB Chemistry Structure 1 Workbook
This complete workbook for structure 1 provides a comprehensive blend of class tasks, practical experiments, and exam-style questions to reinforce learning and ensure thorough preparation for assessments. The workbook includes key content aligned with the IB Chemistry syllabus, ensuring that students can build a strong foundation in this unit.