5.2: Kinetics Lab - Integrated Rate Law
- Page ID
- 342651
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Learning Objectives
Goals:
- Mathematically determine the rate of reaction's dependence on concentration and temperature for a specific chemical reaction
By the end of this lab, students should be able to:
- design, and run an experiment to calculate the constants in the rate law for a chemical reaction involving two reacting species..
- generate log-log plots to calculate the orders of reaction for various reactants..
- Use Arrhenius Equation to determine the temperature dependence of a chemical reaction.
Prior knowledge:
Safety
- Emergency Preparedness
- Eye protection is mandatory in this lab, and you should not wear shorts or open toed shoes.
- Minimize Risk
- Check the cord on the hotplate, inform the instructor if it is frayed.
- Make sure the electrical cord never touches the surface of the hotplate
- Recognize Hazards
- All solutions should be considered harmful and care should be taken to avoid contact with your skin or other body tissues.
- In event of contact with reagents you should flush contacted area with water and notify instructor immediately.
Equipment and materials needed
6 Burettes | 250 mL Erlenmeyer flask | 100 ml beaker |
0.04M Fe | 0.15M HNO3 | 0.04M KI |
distilled H2O | 0.004M Na2S2O3(aq) | 2% Starch |
hot plate | Ice bath |
Background
Kinetics deals with the rate at which a process occurs and chemical kinetics deals with the rates of chemical reactions. This lab will investigate the kinetics associated with the following reaction