{"id":4999,"date":"2026-06-04T11:26:55","date_gmt":"2026-06-04T10:26:55","guid":{"rendered":"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/"},"modified":"2026-06-28T05:49:58","modified_gmt":"2026-06-28T04:49:58","slug":"core-practicals","status":"publish","type":"page","link":"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/","title":{"rendered":"Core Practicals"},"content":{"rendered":"\n<section class=\"ols-revision-page ols-core-practicals-landing-page\">\n  <style>\n    .ols-revision-page {\n      --navy: #1C244B; --blue: #2563eb; --soft-blue: #eef4ff; --soft-purple: #f7f0ff; --soft-green: #f0f7f1; --soft-orange: #fff7ed; --grey-text: #667085; --body-text: #1f2937; --border: rgba(28, 36, 75, 0.14); --shadow: 0 18px 45px rgba(28, 36, 75, 0.10); --inner-shadow: 0 10px 26px rgba(28, 36, 75, 0.08); font-family: Poppins, Arial, sans-serif; color: var(--navy); background: #ffffff;\n    }\n    .ols-revision-page * { box-sizing: border-box; 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border-radius: 22px; } .ols-note-title { align-items: flex-start; } .ols-author { align-items: flex-start; padding: 22px 18px; border-radius: 22px; } .ols-author-avatar-img { width: 72px; height: 72px; } .ols-author-title { font-size: 24px; } .ols-author-description { font-size: 15px; } .ols-ert-grid { grid-template-columns: 1fr; } .ols-ert-card { min-height: 285px; } .ols-related-grid { grid-template-columns: 1fr; } }\n  <\/style>\n\n  <main class=\"ols-main\">\n    <nav class=\"ols-breadcrumbs\" aria-label=\"Breadcrumb\">\n      <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/\">Revision Notes<\/a> \/\n      <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/\">A Level Chemistry<\/a> \/\n      <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/\">Edexcel<\/a> \/\n      <span>Core Practicals<\/span>\n    <\/nav>\n\n    <header class=\"ols-title-card\">\n      <h1>Edexcel A Level Chemistry Core Practicals<\/h1>\n      <p class=\"ols-page-intro\">Use this landing page to move quickly between the 16 Edexcel A Level Chemistry core practical revision pages. Each card links to a focused practical walkthrough covering method, apparatus, safety, data handling, errors, uncertainties and exam-style interpretation.<\/p>\n\n      <div class=\"ols-badges\">\n        <div class=\"ols-badge\">Paper 3 and Practical Endorsement<\/div>\n        <div class=\"ols-badge\">Core Practicals<\/div>\n        <div class=\"ols-badge\">9CH0\/03 and 9CH0\/04<\/div>\n      <\/div>\n\n      <div class=\"ols-author\">\n        <img decoding=\"async\" class=\"ols-author-avatar-img\" src=\"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-content\/uploads\/2026\/05\/Author-Profile.jpeg\" alt=\"Dr. Mohammed Al-Fatah\">\n        <div class=\"ols-author-content\">\n          <h2 class=\"ols-author-title\">Written by:<br><span>Dr. Mohammed Al-Fatah<\/span><\/h2>\n          <p class=\"ols-author-description\">Chemistry specialist revision notes for A Level Chemistry.<\/p>\n          <a class=\"ols-linkedin-pill\" href=\"https:\/\/www.linkedin.com\/in\/doctormohammedfatah\/\" target=\"_blank\" rel=\"noopener noreferrer\">\n            <svg class=\"ols-linkedin-icon\" viewBox=\"0 0 24 24\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M4.98 3.5C4.98 4.88 3.86 6 2.48 6S0 4.88 0 3.5 1.12 1 2.48 1s2.5 1.12 2.5 2.5zM.5 8h4V24h-4V8zm7 0h3.8v2.2h.1c.5-.9 1.8-2.2 3.9-2.2 4.2 0 5 2.8 5 6.4V24h-4v-7.6c0-1.8 0-4.2-2.6-4.2s-3 2-3 4v7.8h-4V8z\"><\/path><\/svg>\n            View LinkedIn Profile\n          <\/a>\n        <\/div>\n      <\/div>\n    <\/header>\n\n    <article class=\"ols-note-card soft\">\n      <div class=\"ols-note-title\">\n        <div class=\"ols-note-icon\">16<\/div>\n        <h2>Choose a Core Practical<\/h2>\n      <\/div>\n      <p>Core practical questions often test more than a memorised method. Students need to understand why each apparatus choice is made, how measurements are processed, how uncertainty affects conclusions and how practical technique links to the underlying chemistry.<\/p>\n      <div class=\"ols-key-box\"><p><strong>Key idea:<\/strong> A strong practical answer links the method to the chemistry, uses correct apparatus vocabulary and evaluates errors or limitations using the data in the question.<\/p><\/div>\n      <div class=\"ols-ert-grid\">\n        <a class=\"ols-ert-card ols-theme-volume\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-1-molar-volume-of-a-gas\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol small-text\" aria-hidden=\"true\">24 dm\u00b3<\/div><\/div>\n          <h3>CP1: Molar Volume of a Gas<\/h3>\n          <p>Measure the molar volume of a gas and connect volume measurements with moles, molar volume and experimental uncertainty.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-standard\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-2-prepare-a-standard-solution\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol medium-text\" aria-hidden=\"true\">Std<\/div><\/div>\n          <h3>CP2: Prepare a Standard Solution<\/h3>\n          <p>Prepare a standard solution accurately using a balance, volumetric flask and careful transfer technique.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-titration\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-3-concentration-of-hcl-by-titration\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol medium-text\" aria-hidden=\"true\">HCl<\/div><\/div>\n          <h3>CP3: Concentration of HCl by Titration<\/h3>\n          <p>Find the concentration of hydrochloric acid using titration, concordant results and mole ratio calculations.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-halo\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-4-hydrolysis-of-halogenoalkanes\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol medium-text\" aria-hidden=\"true\">C-X<\/div><\/div>\n          <h3>CP4: Hydrolysis of Halogenoalkanes<\/h3>\n          <p>Compare rates of hydrolysis of halogenoalkanes and link observations to carbon-halogen bond strength.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-oxidation\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-5-oxidation-of-ethanol\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol medium-text\" aria-hidden=\"true\">EtOH<\/div><\/div>\n          <h3>CP5: Oxidation of Ethanol<\/h3>\n          <p>Oxidise ethanol and revise the apparatus, conditions and organic products linked to aldehydes and carboxylic acids.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-chlorination\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-6-chlorination-of-2-methylpropan-2-ol\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol \" aria-hidden=\"true\">Cl<\/div><\/div>\n          <h3>CP6: Chlorination of 2-methylpropan-2-ol<\/h3>\n          <p>Prepare a chloroalkane from 2-methylpropan-2-ol and revise separation, purification and safe organic technique.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-unknowns\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-7-analysis-of-inorganic-and-organic-unknowns\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol \" aria-hidden=\"true\">?<\/div><\/div>\n          <h3>CP7: Analysis of Inorganic and Organic Unknowns<\/h3>\n          <p>Use qualitative tests to identify inorganic ions and organic functional groups from observations.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-enthalpy\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-8-enthalpy-change-via-hess-law\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol \" aria-hidden=\"true\">\u0394H<\/div><\/div>\n          <h3>CP8: Enthalpy Change via Hess\u2019s Law<\/h3>\n          <p>Use Hess\u2019s Law to determine an enthalpy change indirectly from experimental temperature-change data.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-cells\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-9-electrochemical-cells\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol \" aria-hidden=\"true\">E\u00b0<\/div><\/div>\n          <h3>CP9: Electrochemical Cells<\/h3>\n          <p>Measure cell potentials and connect practical cell design with electrode systems and standard potentials.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-edta\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-10-titration-of-edta\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol medium-text\" aria-hidden=\"true\">EDTA<\/div><\/div>\n          <h3>CP10: Titration of EDTA<\/h3>\n          <p>Use EDTA titration to determine metal ion concentration and practise complexometric titration analysis.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-clock\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-11-rates-of-reaction-clock\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol \" aria-hidden=\"true\">t<\/div><\/div>\n          <h3>CP11: Rates of Reaction (Clock)<\/h3>\n          <p>Investigate a clock reaction and use timing data to compare reaction rates under changed conditions.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-monitoring\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-12-continuous-monitoring-rates\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol medium-text\" aria-hidden=\"true\">rate<\/div><\/div>\n          <h3>CP12: Continuous Monitoring Rates<\/h3>\n          <p>Follow a reaction continuously and interpret rate data from changing measurements over time.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-aspirin\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-13-preparation-of-aspirin\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol medium-text\" aria-hidden=\"true\">ASA<\/div><\/div>\n          <h3>CP13: Preparation of Aspirin<\/h3>\n          <p>Prepare aspirin and revise recrystallisation, yield, purity and organic synthesis technique.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-tlc\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-14-thin-layer-chromatography\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol \" aria-hidden=\"true\">Rf<\/div><\/div>\n          <h3>CP14: Thin Layer Chromatography<\/h3>\n          <p>Use TLC to separate and identify components, including Rf values and chromatogram interpretation.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-organic\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-15-preparing-organic-compound\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol medium-text\" aria-hidden=\"true\">org<\/div><\/div>\n          <h3>CP15: Preparing Organic Compound<\/h3>\n          <p>Prepare, purify and characterise an organic compound using practical synthesis and separation techniques.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n        <a class=\"ols-ert-card ols-theme-testing\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/cp-16-testing-organic-unknowns\/\">\n          <div class=\"ols-ert-visual\"><div class=\"ols-card-symbol \" aria-hidden=\"true\">ID<\/div><\/div>\n          <h3>CP16: Testing Organic Unknowns<\/h3>\n          <p>Use chemical tests and observations to identify organic functional groups in unknown compounds.<\/p>\n          <span class=\"ols-ert-meta\">Open practical page<\/span>\n        <\/a>\n\n      <\/div>\n    <\/article>\n\n    <article class=\"ols-note-card purple\">\n      <div class=\"ols-note-title\">\n        <div class=\"ols-note-icon\">\u2713<\/div>\n        <h2>How to Use These Practical Pages<\/h2>\n      <\/div>\n      <p>Start with the practicals linked to your current topic, then return to this page before Paper 3 revision. For each core practical, make sure you can state the purpose of the experiment, describe the method accurately, process the data and explain how errors, uncertainty and safety affect the quality of the result.<\/p>\n      <div class=\"ols-key-box\"><p><strong>Exam focus:<\/strong> Practise writing concise method improvements, explaining anomalous results, choosing apparatus and linking observations to valid conclusions.<\/p><\/div>\n    <\/article>\n\n    <section class=\"ols-related-card\">\n      <h2>Related Edexcel A Level Chemistry Pages<\/h2>\n      <p>Use these pages to connect practical chemistry with the wider Edexcel A Level Chemistry course.<\/p>\n      <div class=\"ols-related-grid\">\n        <a class=\"ols-related-item\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/\">Edexcel A Level Chemistry<\/a>\n        <a class=\"ols-related-item\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/topic-5-formulae-equations-and-amounts-of-substance\/\">Topic 5 Formulae, Equations and Amounts of Substance<\/a>\n        <a class=\"ols-related-item\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/topic-6-organic-chemistry-i\/\">Topic 6 Organic Chemistry I<\/a>\n        <a class=\"ols-related-item\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/\">Topic 9 Kinetics I<\/a>\n        <a class=\"ols-related-item\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/\">Topic 13 Energetics II<\/a>\n        <a class=\"ols-related-item\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/\">Topic 19 Modern Analytical Techniques II<\/a>\n      <\/div>\n    <\/section>\n\n    <section class=\"ols-attribution-card\">\n      <p><strong>Copyright notice:<\/strong> This OLS revision content, including the explanations, layout, diagrams, tables and embedded learning structure, is authored for Online Learning System by Dr. Mohammed Al-Fatah. It may not be copied, reproduced, redistributed or adapted without written permission.<\/p>\n    <\/section>\n\n    <script type=\"application\/ld+json\">\n    {\n      \"@context\": \"https:\/\/schema.org\",\n      \"@graph\": [\n        {\n          \"@type\": \"WebPage\",\n          \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/#webpage\",\n          \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/\",\n          \"name\": \"Edexcel A Level Chemistry Core Practicals Revision Notes\",\n          \"description\": \"Landing page for Edexcel A Level Chemistry core practical revision, linking to all 16 practicals including molar volume, titrations, organic preparation, rates, electrochemical cells, chromatography and unknowns analysis.\",\n          \"inLanguage\": \"en-GB\",\n          \"isPartOf\": { \"@type\": \"WebSite\", \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/#website\", \"name\": \"Online Learning System\", \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/\" },\n          \"author\": { \"@type\": \"Person\", \"name\": \"Dr. Mohammed Al-Fatah\", \"url\": \"https:\/\/www.linkedin.com\/in\/doctormohammedfatah\/\" },\n          \"publisher\": { \"@type\": \"Organization\", \"name\": \"Online Learning System\", \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/\" }\n        },\n        {\n          \"@type\": \"BreadcrumbList\",\n          \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/#breadcrumb\",\n          \"itemListElement\": [\n            { \"@type\": \"ListItem\", \"position\": 1, \"name\": \"Revision Notes\", \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/\" },\n            { \"@type\": \"ListItem\", \"position\": 2, \"name\": \"A Level Chemistry\", \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/\" },\n            { \"@type\": \"ListItem\", \"position\": 3, \"name\": \"Edexcel\", \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/\" },\n            { \"@type\": \"ListItem\", \"position\": 4, \"name\": \"Core Practicals\", \"item\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel\/core-practicals\/\" }\n          ]\n        }\n      ]\n    }\n    <\/script>\n  <\/main>\n<\/section>\n\n","protected":false},"excerpt":{"rendered":"<p>Revision Notes \/ A Level Chemistry \/ Edexcel \/ Core Practicals Edexcel A Level Chemistry Core Practicals Use this landing page to move quickly between the 16 Edexcel A Level Chemistry core practical revision pages. Each card links to a focused practical walkthrough covering method, apparatus, safety, data handling, errors, uncertainties and exam-style interpretation. Paper [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"parent":1784,"menu_order":7,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4999","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/4999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/comments?post=4999"}],"version-history":[{"count":0,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/4999\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/1784"}],"wp:attachment":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/media?parent=4999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}