Chemistry 1820 Experiment
1: Calculating the Heat of Solution for Bases (NaOH, KOH, and LiCl)
Objective: To determine the heat of solution for sodium hydroxide (NaOH), potassium hydroxide (KOH), and lithium chloride (LiCl) by measuring the temperature change when these substances are dissolved in water.
Materials:
- Sodium hydroxide (NaOH)
- Potassium hydroxide (KOH)
- Lithium Chloride (LiCl)
- Water
- Digital thermometer or temperature sensor
- Weighing scale
- Beaker or container for mixing
Procedure:
Part 1: Preparation
1. Access the provided link to the virtual laboratory environment.
2. Navigate to the "Experiment" section.
3. Select the "Solids" option to choose your base for the experiment.
Part 2: Conducting the Experiment with NaOH
4. From the list of solids, select "NaOH" (Sodium Hydroxide).
5. Choose a mass for the NaOH, ensuring it is less than 10% of its molar mass.
6. Click "Next" to proceed.
7. Select "Water" as the solvent and ensure the mass of water is not more than 150g.
8. Click "Start" to initiate the mixing process.
9. Immediately record the initial temperature of the mixture.
10. Wait for the solution to stabilize and then record the final temperature.
Part 3: Repeating the Experiment
11. Repeat