Preparation, Standardization and Estimation

  Ø   Apparatus:- ·          250 ml conical flask ·          100 ml cylinder ·          50 ml burette   Ø   Reagents:- ·          di-Sodium EDTA dehydrate (A.R Grade) ·          Eriochrome Black T (EBT) Indicator ·          Magnesium Sulphate Heptahydrate (A.R. Grade) ·          pH 10 Ammonia Buffer Solution   Ø   Preparation of Solution:- ·          0.1 (N) di-Sodium EDTA dihydrate:-   Weight accurately 37.224 g di-Sodium EDTA dihydrate and dissolve in 1L DM water. ·          Eriochrome Black T (EBT) Indicator:- Dissolve 0.5 g of EBT and 5.0 g of hydroxylamine hydro...

  Ø   Apparatus:- ·          250 ml Iodine flask ·          100 ml cylinder ·          50 ml burette Ø   Reagents:- ·          Sodium Thiosulphate ·          Starch Indicator ·          Potassium dichromate (A.R. Grade) ·          Potassium Iodide (A.R Grade) ·          Hydrochloric Acid (A.R Grade) Ø   Preparation of Solution:- ·          0.1 (N) Sodium Thiosulphate:-   Weight accurately 25 g Sodium Thiosulphate and about 0.2 g Sodium Carbonate. Dissolve in 1000 ml DM water. ·          Starch Indicator:- Dissolve 0.1 g Starch in 100 ml by...

  Ø   Apparatus:- ·          250 ml conical flask ·          100 ml cylinder ·          10 ml cylinder ·          50 ml burette   Ø   Reagents:- ·          0.1 (N) Silver Nitrate ·          Nitric Acid (AR Grade) ·          Calcium Carbonate powder (AR Grade) ·          Potassium Chromate (K 2 CrO 4 ) 5% W/V solution   Ø   Preparation of Solution:- ·          0.1 (N) Silver Nitrate:-                                 ...

  Ø   Apparatus:- ·          250 ml conical flask ·          100 ml cylinder ·          50 ml burette   Ø   Reagents:- ·          1.0 (N) Sodium Hydroxide ·          Phenolphthalein   Indicator ·          Potassium Hydrogen Phthalate (A.R Grade)   Ø   Preparation of Solution:- ·          1.0 (N) Sodium Hydroxide:-   Weight accurately 40 g Sodium Hydroxide and dissolve in 1L DM water. ·          Phenolphthalein Indicator:- Dissolve 0.1 g of Phenolphthalein Indicator in 20 ml methyl alcohol and add sufficient water to produce 100 ml.   Ø   Procedure:- Take accurately about 4.0 g Potassium H...