Essays Tagged: "EDTA"

Vands hårdhed

yr og kemikalier.50 mL måleglas Pufferopløsning (pH = 10)10 mL måleglas 0,0100 M EDTA-opløsning250 mL konisk kolbe IonbytterBuretteTeoriStoffet EDTA (ethylendiamintetraeddike ... H+ være fraspaltet, og vi har derfor følgende ion, der for nemheds skyld blot betegnes EDTA4- :-O O C - C H2 H2 C - C O O-ú úN - C H2 - C H2 - C H2 - Nú ú-O O ...

(3 pages) 28 0 4.0 Dec/1996

Subjects: Science Essays > Chemistry

Treatment of drinking water and the processes used in the Illawarra region. HSC year 12 syllabus

equivalent amount of dissolved CaCO3 (1 mg CaCO3 L-1 = 1 ppm).A titration with a complexing agent (EDTA) and indicator is used to determine the hardness of a water sample. Stoichiometry: Ca2+/EDTA = ...

(19 pages) 25 0 0.0 Apr/2009

Subjects: Science Essays > Chemistry

Water Quality Investigation

ter, 5 bottled and 5 tap. This is accomplished by a titration method using a chelating agent called EDTA, which is short for, ethelynediamine tetraacetic acid. The first method is a titration using Er ... oride and ammonia hydroxide. This solution is at a pH of 10. The reason for this is that during the EDTA solution, without a buffer at a pH of 10, the solution's pH will lower, essentially becoming an ...

(16 pages) 2 0 0.0 Jul/2014

Subjects: Science Essays > Chemistry

Determination of nickel in a nickel(II) salt using EDTA

IntroductionEDTA (H₄Y) is widely used to determine metals in complexometric (a volumetric analysis where t ... ndicate the end point of a titration) titrations as it forms stable complexes with most metal ions. EDTA is a tetracorboxylic acid and in alkaline conditions, it exists as Y⁴⁻ ions, which ... n indicator (an organic dye which changes colour when it binds with metal ions) shows the end of an EDTA complexometric titration. However, for a metal ion indicator to be suitable in n EDTA titration ...

(2 pages) 3 0 0.0 Sep/2014

Subjects: Science Essays > Chemistry