0.1 N NaOH Solution Preparation
Introduction
Sodium hydroxide (NaOH) is a strong base widely used in various industrial and laboratory applications. One of the common concentrations used is 0.1 N ( Normal) NaOH solution, which is essential in many analytical procedures. In this article, we will guide you through the preparation of 0.1 N NaOH solution.
Materials Needed
- Sodium hydroxide (NaOH) pellets
- Distilled water
- A 1-liter volumetric flask
- A pipette or burette
- A stirring rod
Preparation of 0.1 N NaOH Solution
Step 1: Calculate the Amount of NaOH Required
To prepare 1 liter of 0.1 N NaOH solution, you need to calculate the amount of NaOH required. The formula to calculate the amount of NaOH is:
Weight of NaOH (g) = (Normality x Molar Mass) / 1000
where Normality = 0.1 N, Molar Mass of NaOH = 40 g/mol
Weight of NaOH (g) = (0.1 x 40) / 1000 = 4 g
Step 2: Weigh and Transfer NaOH
Accurately weigh 4 g of NaOH pellets using a balance. Transfer the weighed NaOH to a 1-liter volumetric flask.
Step 3: Add Distilled Water
Slowly add distilled water to the flask while stirring the mixture with a stirring rod. Add water until the volume reaches 1 liter.
Step 4: Dissolve NaOH
Stir the mixture until all the NaOH pellets are completely dissolved.
Step 5: Verify the Concentration
Verify the concentration of the prepared NaOH solution using a pH meter or by titrating with a standard acid solution.
Precautions and Safety Measures
- Wear protective gloves and eyeglasses when handling NaOH.
- Handle NaOH in a well-ventilated area to avoid inhaling its dust or fumes.
- Avoid splashing the solution, as it can cause skin and eye irritation.
Conclusion
In this article, we have outlined the simple steps to prepare 0.1 N NaOH solution. This solution is widely used in various analytical procedures, and its accurate preparation is crucial to achieve reliable results. Follow the precautions and safety measures to ensure a safe and successful preparation.
References
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