Method of Mixing Water and Sulphuric Acid

Step 1: Safety Precautions
- Wear protective gear such as gloves, goggles, and a lab coat.
- Work in a well-ventilated area or under a fume hood to prevent inhalation of harmful fumes.

Step 2: Pouring Water into the Beaker
- Carefully measure out 15 ml of water using a graduated cylinder.
- Slowly pour the water into the beaker to minimize splashing.

Step 3: Adding Sulphuric Acid
- Measure out 10 ml of sulphuric acid using a separate clean graduated cylinder.
- Slowly add the sulphuric acid to the water in the beaker while stirring gently.
- Never add water to concentrated acid as it can cause a violent reaction.

Step 4: Mixing Thoroughly
- Continue stirring the mixture until the water and sulphuric acid are completely mixed.
- Ensure that there are no visible signs of separation between the two liquids.

Step 5: Cleaning Up
- Dispose of any remaining chemicals following proper laboratory waste disposal procedures.
- Wash all equipment used in the experiment with soap and water.

Process Name: Dilution

Definition: Dilution is the process of reducing the concentration of a solute in a solution by adding more solvent. In this case, by mixing 15 ml of water with 10 ml of sulphuric acid, we are diluting the acid to make it less concentrated.

Explanation: When water is added to the sulphuric acid, the acid molecules spread out and become less concentrated. This reduces the corrosive properties of the acid and makes it safer to handle. Dilution is a common technique used in laboratories to adjust the concentration of solutions for various experiments and applications.