How to prepare 0.1N silver nitrate solution

To make a 0.1N silver nitrate (AgNO3) solution, perform the following steps:

1. Calculate the amount of AgNO3 needed:

• The molar mass of AgNO3 is approximately 169.87 g/mol.
• Since 0.1N means 0.1 mole per liter (1L) of the solution, the amount of AgNO3 needed can be calculated as follows:
• Amount (in grams) = Normality (N) × Volume (in liters) × Molar mass (g/mol)
• Amount = 0.1N × 1L × 169.87 g/mol = 16.987 grams

2. Weigh out 16.987 grams of silver nitrate using an analytical balance. Make sure to handle it with care as silver nitrate is a hazardous substance.

3. Transfer the weighed silver nitrate (16.987 grams) into a clean, dry, and labeled container.

4. Add distilled water to the container to make a final volume of 1 liter. You can use a measuring cylinder or a volumetric flask to measure the exact volume accurately.

5. Carefully dissolve the silver nitrate in the water by gently swirling the container. It may take some time for the solid to dissolve completely. Ensure that all the solid has dissolved before proceeding.

6. Once the silver nitrate is completely dissolved, the solution is ready. You now have a 0.1N silver nitrate solution

PRECAUTIONS:

• When working with chemicals, avoid contact with skin, eyes, clothing, ingestion, and inhalation.
• Stir a little amount of silver nitrate into a large volume of water at a time, and then dilute the solution.
• When making silver nitrate solutions, it is recommended that always use distilled/deionized water.
• Wear protective gloves, clothing, eye protection, and face protection.
• Wash your hands/skin thoroughly after handling.
• The hazards of AgNO3 include its toxic and corrosive nature.
• Always use silver nitrate that has been previously dried at 105°C for 1 hour.
• Always store the silver nitrate in sealed containers or in a desiccator to protect it from moisture and light.
• Silver nitrate produces a long-lasting stain when applied to the skin. You can remove it by applying household ammonia to the stained area of ​​the skin.