Salt samples and classification in Acids, Bases and Salts – Class 10 Science Experiment

Chapter Name: Acids, Bases and Salts

Activity Name: Salt samples and classification in Acids, Bases and Salts

Activity Description:

In this experiment, various salt samples are collected, including sodium chloride, aluminum chloride, copper sulfate, sodium acetate, ammonium chloride, sodium hydrogen carbonate, and sodium carbonate. These salts are then dissolved in distilled water. The action of the resulting solutions is tested using litmus papers to determine their acidic, basic, or neutral nature.

The pH of each solution is also measured using pH paper (universal indicator). Based on the pH values obtained, the salts are classified into acidic, basic, or neutral categories. The experiment aims to identify the acids and bases used to form these salts.

Required Items:

  1. Salt samples (sodium chloride, aluminum chloride, copper sulfate, sodium acetate, ammonium chloride, sodium hydrogen carbonate, and sodium carbonate)
  2. Distilled water
  3. Litmus papers
  4. pH paper (universal indicator)
  5. Table for recording observations

Step by Step Procedure:

  1. Collect the various salt samples listed in the experiment description.
  2. Dissolve each salt sample in a separate container of distilled water.
  3. Test the resulting solutions with litmus papers to observe any color changes.
  4. Use pH paper (universal indicator) to measure the pH of each solution.
  5. Based on the pH values obtained, classify the salts into acidic, basic, or neutral categories.
  6. Identify the acids and bases that were used to form the respective salts.
  7. Record all observations in the provided table.

Experiment Observations:

  • Note down your observation values in table format:
Salt samples and classification in Acids, Bases and Salts - Class 10 Science Experiment

Precautions:

  1. Handle the salt samples and solutions with care to avoid spills and accidents.
  2. Use separate containers for dissolving each salt sample to prevent cross-contamination.
  3. Ensure the litmus papers and pH paper are fresh and in good condition for accurate results.
  4. Dispose of the solutions properly according to safety guidelines.

Lesson Learnt from Experiment:

Through this experiment, students will learn how to classify salts based on their acidic, basic, or neutral nature. They will also understand the relationship between the pH values of salt solutions and the type of acid and base involved in their formation. The experiment provides a practical demonstration of the principles of acids, bases, and salts.

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