Mixing solutions in Chemical Reactions and Equations – Class 10 Science Experiment

Chapter Name: Chemical Reactions and Equations

Activity Name: Mixing solutions in Chemical Reactions and Equations

Activity Description:

Required Items:

1. Sodium sulfate (Na2SO4)
2. Barium chloride (BaCl2)
3. Water
4. Two beakers (100 ml each)

Step by Step Procedure:

1. Take about 100 ml of water and dissolve a small quantity of sodium sulfate (Na2SO4) in one beaker.
2. Take about 100 ml of water and dissolve a small quantity of barium chloride (BaCl2) in another beaker.
3. Observe the colors of the individual solutions obtained.

Experiment Observations:

1. Sodium sulfate (Na2SO4) solution color: [Insert color observed]
2. Barium chloride (BaCl2) solution color: [Insert color observed]
3. Carefully add the sodium sulfate (Na2SO4) solution to the barium chloride (BaCl2) solution.
4. Observe any changes upon mixing the solutions.

Precautions:

1. Handle chemicals with care, avoiding direct contact with the skin and eyes.
2. Work in a well-ventilated area to avoid inhaling any fumes.
3. Use only small quantities of chemicals as specified in the experiment.
4. Dispose of the chemical waste appropriately and as per safety guidelines.

Lesson Learnt from Experiment:

This experiment helps students understand the concept of chemical reactions by observing changes in the solutions’ colors when mixed. It may demonstrate the formation of a precipitate or a color change indicating the occurrence of a chemical reaction between sodium sulfate and barium chloride.