Prepare 0.01 mol/l Bismuth Nitrate Solution

General Information:

   One liter of this solution contains 4.851 g of bismuth nitrate (Bi(NO3)3ŋ5H2O,
   molecular weight: 485.07). 

Procedure:

   Weigh 4.86 g of bismuth nitrate, dissolve in 60 ml of diluted nitric acid (1 ˠ
   10), and add water to make 1,000 ml.

Standardization:

   Measure exactly 25 ml of 0.01 mol/l bismuth nitrate, add 50 ml of water, and titrate with  
   0.01 mol/l EDTA (indicator: 1 drop of xylenol orange TS) until the color of the solution
   changes from red to yellow.