0.1M Sodium Carbonate Preparation
Introduction
Sodium carbonate (Na2CO3) is a widely used chemical in various industries, including pharmaceuticals, food, and manufacturing. In laboratory settings, sodium carbonate is often used as a buffering agent, pH adjuster, and reagent in chemical reactions. In this article, we will discuss the preparation of 0.1M sodium carbonate solution.
Materials Needed
- Sodium carbonate (Na2CO3) granules
- Distilled water
- 100 mL beaker
- Stirring rod
- Scale (optional)
Preparation of 0.1M Sodium Carbonate Solution
To prepare 0.1M sodium carbonate solution, follow the steps below:
Step 1: Calculate the Amount of Sodium Carbonate Needed
To prepare 100 mL of 0.1M sodium carbonate solution, we need to calculate the amount of sodium carbonate required.
Molarity (M) = Number of moles of solute per liter of solution
We want to prepare 0.1M sodium carbonate solution, so we need to calculate the number of moles of sodium carbonate required.
Molecular weight of sodium carbonate (Na2CO3) = 106.0 g/mol
Number of moles = Molarity x Volume (in liters) = 0.1 M x 0.1 L = 0.01 moles
Mass of sodium carbonate required = Number of moles x Molecular weight = 0.01 moles x 106.0 g/mol = 1.06 g
Step 2: Weigh and Dissolve Sodium Carbonate
Accurately weigh out 1.06 g of sodium carbonate granules using a scale. Transfer the weighed sodium carbonate to a 100 mL beaker.
Step 3: Add Distilled Water
Add approximately 50 mL of distilled water to the beaker. Stir the mixture with a stirring rod to dissolve the sodium carbonate.
Step 4: Dilute to the Mark
Add more distilled water to the beaker to make a total volume of 100 mL. Stir the mixture well to ensure complete dissolution.
Step 5: Check the pH (Optional)
The pH of the 0.1M sodium carbonate solution is around 10.5-11.0. You can check the pH using a pH meter or pH paper.
Precautions and Handling
- Handle sodium carbonate with care, as it can cause skin and eye irritation.
- Wear gloves and safety goggles when handling the chemical.
- Avoid inhaling sodium carbonate dust.
- Store the prepared solution in a glass bottle with a tight-fitting lid.
Conclusion
In this article, we have successfully prepared 0.1M sodium carbonate solution. This solution can be used in various laboratory applications, including pH adjustments, buffering, and chemical reactions. Always handle chemicals with care, and follow proper laboratory procedures to ensure safety.
