Explain the titration curve (variation of pH with respect to addition of titrant) with suitable diagram and reactions involved when a strong base is added as titrant to a weak acid as analyte.
Q2)
a) Explain the titration curve (variation of pH with respect to addition of titrant) with suitable diagram and reactions involved when a strong base is added as titrant to a weak acid as analyte.
(b) The saline water discharged from a thermal desalination plant was analyzed and it has following composition.
(i) If the discharged water sample contains 4.2 g of potassium
chloride (KCl) per 500 mL of solution, determine its molarity.
(ii) The sample contains CaCl2 and its concentration was found to be 0.04M. Calculate grams of CaCl2 present in 100 mL of the sample.
(c) In complexometric titration, explain why a constant pH need to be maintained during estimation of metal ions using EDTA.
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