ะฃ ะฝะฐั ะฒั ะผะพะถะตัะต ะฟะพัะผะพััะตัั ะฑะตัะฟะปะฐัะฝะพ ๐๐ - ๐๐จ๐ฆ๐ฉ๐ฅ๐๐ฑ ๐๐จ๐ซ๐ฆ๐๐ญ๐ข๐จ๐ง ๐ญ๐ข๐ญ๐ซ๐๐ญ๐ข๐จ๐ง & ๐๐๐๐ ๐๐จ๐ฆ๐ฉ๐ฅ๐๐ฑ๐จ๐ฆ๐๐ญ๐ซ๐ข๐ ๐ญ๐ข๐ญ๐ซ๐๐ญ๐ข๐จ๐ง ะธะปะธ ัะบะฐัะฐัั ะฒ ะผะฐะบัะธะผะฐะปัะฝะพะผ ะดะพัััะฟะฝะพะผ ะบะฐัะตััะฒะต, ะฒะธะดะตะพ ะบะพัะพัะพะต ะฑัะปะพ ะทะฐะณััะถะตะฝะพ ะฝะฐ ัััะฑ. ะะปั ะทะฐะณััะทะบะธ ะฒัะฑะตัะธัะต ะฒะฐัะธะฐะฝั ะธะท ัะพัะผั ะฝะธะถะต:
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ะัะปะธ ะฒะพะทะฝะธะบะฐัั ะฟัะพะฑะปะตะผั ัะพ ัะบะฐัะธะฒะฐะฝะธะตะผ ะฒะธะดะตะพ, ะฟะพะถะฐะปัะนััะฐ ะฝะฐะฟะธัะธัะต ะฒ ะฟะพะดะดะตัะถะบั ะฟะพ ะฐะดัะตัั ะฒะฝะธะทั
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Mostafa El-Naggar (M.Sc) Assistant Lecturer of Analytical Chemistry Faculty of Science, Alexandria University, Egypt This lecture provides a comprehensive academic overview of complex formation titrations, with a primary focus on EDTA complexometric titration, a widely used method in quantitative analysis of metal ions. ๐ Lecture Objectives: โข Define and explain the principles of complexometric titration โข Understand the role of chelating agents, particularly ethylenediaminetetraacetic acid (EDTA) โข Discuss metal-ligand complex stability. โข Explore the stoichiometry of complex formation reactions. ๐ฌ This lecture is suitable for: โข Undergraduate students in pharmaceutical sciences, chemistry, and environmental science โข Learners preparing for practical or theoretical examinations in analytical chemistry โข Anyone seeking a deeper understanding of quantitative metal ion analysis This lecture covers the following points: 00:00 Introduction and Complex Formation Titration 09:08 ligand definition and Classification of the ligands 17:44 Titration curves in compleximetric titrations 19:38 Factors affecting the magnitude of the break in the titration curve 23:49 Titration of copper(II) against ammonia 30:53 Titration of copper(II) against polydentate ligand, trien. 32:45 Titration curve of Cu2+ against trien and NH3 35:10 The difference between complexometry and compleximetry 37:01 Titration involving unidentate ligands (compleximetric titration) 39:03 Liebigโs method (Argentometric titration of cyanide) 46:00 Deniges Modification (Modification of Liebigโs method) 49:18 Mercurimetric Titration 52:24 Titrations with multidentate Ligands 53:59 Ethylene Diamine Tetra Acetic acid (EDTA) and its properties 01:11:36 Factors affecting stability of the metal-EDTA complexes -Effect of pH -Nature of the metal ion 01:16:18 EDTA Complexometric Titration Curves. 01:34:28 Factors affecting the shape of the titration curves in complexometric reactions (metal EDTA chelates) 1- The stability constant of the complex 2- The effect of pH For Contact: ๐ Facebook personal account: ย ย /ย mostafa.elnaggar.14224ย ย ๐ Youtube channel: ย ย ย /ย @mostafanaggar-ie4jnย ย ๐ Email address: [email protected] ๐ Mobile (Whatsapp): +20 10 12463029