أرشيف الوسم : titration

معايرات إيثيلين ثنائي الأمين رباعي حمض الخليك EDTA EDTA Titration ( Sections 11.1-11.3 &11.5-11.6 , Quantitative Chemical Analysis by Daniel C. Harris, 8th Edition ) ( التحليل الكيميائي النوعي – دانيال هاريس )   EDTA is abbreviation for ethylenediaminetetraacetic acid, a compound that forms strong complexes with most metal ions and finds wide use in quantitative analysis. الـ EDTA هو …

A substance that reveals, through characteristic color changes, the degree of acidity or basicity of solutions. Indicators are weak organic acids or bases which exist in more than one structural form (tautomers) of which at least one form is colored. Intense color is desirable so that very little indicator is needed; the indicator itself will thus not affect the acidity …

ملخص الفصل الرابع :أنواع التفاعلات الكيميائية و العلاقات الكمية للمحاليل من كتاب الكيمياء للعالم زومدال Chapter 4 notes: Types of Chemical Reactions and Solution Stoichiometry , Chemistry Zumdahl إذا كنت تبحث عن باقي الفصول فالرجاء الضغط على الروابط الآتية : الفصل الأول : ملخص الفصل الأول :أساسيات الكيمياء للعالم زومدال Chapter 1 chemistry foundation Notes Zumdahl AP الفصل الثاني  :ملخص الفصل …

amperometric titration : A method of determining the chemical composition of a solution by measur­ing the current passing through a cell containing the solution; the po­tential is held constant during the titration for both the indicator and reference electrodes, with changes in the current being measured. The cur­rent flowing through the cell is meas­ured as a function of the amount …

back titration : A technique in vol­umetric analysis in which a known excess amount of a reagent is added to the solution to be estimated. The unreacted amount of the added reagent is then determined by titra­tion, allowing the amount of sub­stance in the original test solution to be calculated.   بوسترات (لوحات) كيميائية بدقة عالية (أكثر من 25 لوحة) …