Praktikum Kimia Fisika - Termokimia

Introduction

This tutorial provides a step-by-step guide for conducting a thermochemistry practical experiment as demonstrated in the "Praktikum Kimia Fisika - Termokimia" video. The experiment is designed for students at Universitas Islam Negeri Sunan Gunung Djati Bandung and covers various thermochemical processes including calorimetry, neutralization, and complex formation.

Step 1: Set Up Your Equipment

• Use a 25 mL pycnometer for measuring liquid volumes.
• Prepare two volumes of water: 50 mL of cold water and 50 mL of hot water.
• Ensure you have the necessary materials for determining:
  • Calorimetry
  • Neutralization
  • Dissolution
  • Complex formation
  • Precipitation

Step 2: Prepare Your Solutions

• For each reaction (neutralization, dissolution, etc.), use half the dosage specified in your laboratory module.
• Conduct your experiments in a controlled environment to ensure accurate measurements.

Step 3: Conduct the Reactions

• Follow the specific procedures for each type of reaction:
  • Neutralization: Mix the acid and base solutions and measure the temperature change.
  • Dissolution: Dissolve the solid in water and measure the temperature before and after.
  • Complex formation and precipitation: Follow specific protocols for mixing reagents.

Step 4: Monitoring Temperature

• Instead of reading the thermometer directly, record temperature changes in a table format.
• Create your observation table to document the initial and final temperatures of each reaction.

Step 5: Handle Equipment Issues

• Note that the bomb calorimeter is currently non-functional. Familiarize yourself with its operation in your report, even if you cannot use it for this experiment.
• Review the procedures for using a bomb calorimeter to understand its role in thermochemical measurements.

Step 6: Record and Analyze Data

• After completing your experiments, compile all data into a comprehensive report.
• Analyze temperature changes and calculate the heat involved in each reaction using appropriate formulas.

Conclusion

In this practical guide, you've learned how to set up and conduct various thermochemical experiments, including the preparation of solutions, monitoring temperature changes, and handling equipment limitations. For further learning, consider watching the supplementary video on the bomb calorimeter linked in the original video. If you have any questions or need clarification, feel free to reach out through the provided communication channels.