WebSolution. 1) EDTA or its sodium salt forms stable complex ion with Ca 2+ or Mg 2+ ( hardness producing ions ) in water .The titration is carried out in presence of indicator such as Eriochrome Black T ( EBT ) . 2) In a hard water sample ,the total hardness can be determined by titrating Ca 2+ and Mg 2+ present in an aliquot of the sample with ... WebJul 23, 2024 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...
Hardness of Water: Definition, Causes, Determination, Types
WebJun 21, 2024 · A major application of EDTA titration is testing the hardness of water, for which the method described is an official one (Standard Methods for the Examination of … WebHardness of water is determined by titrating with a standard solution of ethylene diamine tetra acetic acid (EDTA) which is a complexing agent. Since EDTA is insoluble in water, the disodium salt of EDTA is taken for this experiment. EDTA can form four or six coordination bonds with a metal ion. Two type of hardness is present in water first is ... jeremy twitch stenberg house
What is Hardness of Water – Types, Limits, and Effects
http://xmpp.3m.com/complexometric+determination+of+water+hardness+lab+report WebDec 18, 2013 · Reaction: MIn – + H 2 Y 2- → HIn 2- + MY 2- + H +. Determination of hardness of water by EDTA method is father classified into four methods. Ammonia Buffer procedure. Borate Buffer procedure. … WebThe first method is calculation based method and the second method is titration method using EDTA. (i) Calculation method For this method, concentration of cations should be known and then all concentrations are expressed in terms of CaCO 3 using Eq. 3: Hardness (in mg/L as CaCO 3) = [M 2+ (in mg/L) × 50]/ (E.Wt. of M 2+) (3) jeremy twitch stenberg\\u0027s house