0.1N Silver Nitrate (AgNO3) Solution Preparation and Standardization

Preparation and Standardization of 0.1N Silver Nitrate (AgNO3) Solution in pharmaceutical labs by using below steps:

Steps involved in the Preparation and Standardization of 0.1N Silver Nitrate

Step-1: Reagent preparation
Step-2: AgNO₃ solution preparation
Step-3: AgNO₃ solution Standardization
Step-4: Calculation

Preparation of 0.1 N AgNO₃ solution:

• Take the required apparatus for this and a Weight of 0.584g sodium chloride (Previously dried)
• Transfer the sodium chloride into a volumetric flask of 100ml. Fill the flask with distilled water up to the mark.
• Shake and mix the content to make a homogeneous solution.
• Now our 0.1N NaCl solution is ready to use.

Step-1: Reagent Preparation: (Pottasium Chromate solution)

• Dissolve 5g potassium chromate in 100 ml distilled water
• Shake the solution well to mix the content properly
• Prevent the solution from direct light exposure
• Store the solution in a Dark and cool place.

Step-2: AgNO₃ solution preparation:

• Take the weight of 4.245g silver nitrate
• Tranfer the silver nitrate in volumetric flask of 250ml
• Fill the volumetric flask with distilled water up to the mark.
• Shake and mix the content to make a homogeneous solution.
• Now our Expected 0.1N AgNO₃ is ready.
• Next, we have to standardize the silver nitrate solution.

Step-3: AgNO₃ solution Standardization:

• Measure 10 ml of sodium chloride solution and transfer it into a conical flask.
• add 1 ml potassium chromate as an indicator solution into the conical flask.
• Shake and rotate the flask to mix the content.
• Next. fill a burette with the newly prepared silver nitrate (AgNO₃) solution.
• Note the initial burette reading
• Begin the process of titrating a sodium chloride (NaCl) solution by slowly adding silver nitrate (AgNO3) from the burette.
• Make sure to stir the flask vigorously while performing the titration.
• The reddish-brown color formation indicates the end-point of the titration.
• Now note the final burette reading.

Related: 0.1 M Silver Nitrate Solution Preparation and Standardization

Step-4: Calculation:

The formula for Preparation and Standardization of 0.1N Silver Nitrate:

N₂V₂=N₁V₁

Where, N1 (Normality of NaCl= 0.1 N
V2 (Volume of NaCl)= 10 ml
V2 (Volume of AgNO₃)= Final Burrete Reading- Initial Reading

Now we have to find out the Normality of the AgNO₃ solution (N₂) by using below formula:

N₂= N₁ V₁/V₂

Finally, Get the Normality of the AgNO3 solution by putting a value in the above equation.

Reference– Indian Pharmacopeia