How to Prepared and Standardize of 0.1 Silver Nitrate Volumetric Solutions

How to Prepared and Standardize of 0.1 Silver Nitrate Volumetric Solutions

                                                            

                                                                 

Preparation of 0.1 Silver Nitrate Volumetric solution

➤ Glassware and instruments required.

Beaker, Glass stirrer, Graduated Pipettes, Graduated cylinder, Analytical balance, Sucker, Volumetric flask, Burette, Conical Flask, Fume hood.

➤ Reagents required.

Silver nitrate Reagent grade,

Mol. Wt. :- AgNO₃, 169.87

Sodium Chloride PS previously dried at 110°,

Acetic Acid,

Methanol,

eosin Y Solution.

➤ Preparation.

Weigh 17 g of silver nitrate reagent grade in 1000 ml volumetric flask, and dissolve in water and dilute up to the mark with the same solvent.

➤ Standardization.

Weigh accurately about 0.1 g sodium chloride PS, previously dried at 110° into a 150 ml beaker, dissolve in 5 ml of water, and add 5 ml of acetic acid , 50 ml of methanol, and about 0.5 ml of eosin Y solution. Stir, preferably with a magnetic stir , and titrate with the silver nitrate solution . The end point is from pink to dark red. 

➤ Calculations.

                                       g  NaCl x  0.1

N/M = --------------------------------------------------

                      0.005844  x   Burette reading  in ml