0.1M Silver Nitrate Preparation
Introduction
Silver nitrate is a versatile chemical compound widely used in various fields, including medicine, photography, and analytical chemistry. In this article, we will discuss the preparation of 0.1M silver nitrate solution, a common concentration used in many applications.
Materials
Reagents
- Silver nitrate (AgNO3)
- Distilled water
Equipment
- Laboratory balance
- Volumetric flask (100 mL)
- Graduated cylinder (100 mL)
- Stirring rod
Preparation
Step 1: Calculate the Amount of Silver Nitrate
To prepare 0.1M silver nitrate solution, we need to calculate the amount of silver nitrate required. The molar mass of silver nitrate is 169.87 g/mol.
Molarity Formula:
Molarity (M) = Number of moles of solute / Liter of solution
To prepare 100 mL of 0.1M silver nitrate solution, we need:
Number of moles of silver nitrate = Molarity x Volume (in liters) = 0.1 M x 0.1 L = 0.01 moles
Mass of silver nitrate = Number of moles x Molar mass = 0.01 moles x 169.87 g/mol = 1.6987 g
Step 2: Weigh the Silver Nitrate
Using a laboratory balance, accurately weigh 1.6987 g of silver nitrate.
Step 3: Dissolve the Silver Nitrate
Transfer the weighed silver nitrate to a 100 mL volumetric flask. Add a small amount of distilled water to the flask and swirl gently to dissolve the silver nitrate.
Step 4: Dilute to Volume
Add more distilled water to the flask to reach the 100 mL mark. Stir gently to ensure the solution is homogeneous.
Step 5: Mix Well and Store
Use a stirring rod to mix the solution thoroughly. Store the prepared 0.1M silver nitrate solution in a clean, dark bottle, and label it properly.
Tips and Precautions
- Always handle silver nitrate with care, as it can cause skin and eye irritation.
- Wear protective gloves, goggles, and lab coats when handling silver nitrate.
- Store the prepared solution in a cool, dark place to prevent decomposition.
- Verify the concentration of the prepared solution using titration or other analytical methods, if necessary.
By following these steps, you can easily prepare 0.1M silver nitrate solution for your research or laboratory needs.
