Question:
What factors affect the rate of chemical reactions?
Materials:
- Beakers/vials
- Heating plate
- Juice from pickled red cabbage
- Sodium bicarbonate (baking soda)
- 1M acetic acid (vinegar)
- Stopwatches
- Safety goggles and gloves
Instructions:
- Place a vial of acetic acid in a beaker of water at room temperature, 0 °C (ice bath), and 60 °C
- Add a teaspoon of pickled red cabbage juice
- Add 0.5-3 teaspoons of sodium bicarbonate and monitor the time it takes for the solution to turn blue
- Correlate the observed time with reaction temperature, amounts/ratios of acetic acid and sodium bicarbonate, what is added to what, and if mixing water to either reactant affects the rate