Factors Affecting the Rate of a Chemical Reaction Lab Report Answers

Report Sheet 10: Factors Affecting the Rate of a Chemical ReactionRecord the stock molarities of oxalic acid and potassium permanganate.Effect of concentration — run three trials and record elapsed time:- Experiment 1: 6 drops water, 5 drops H2C2O4, 1 drop KMnO4.- Experiment 2: 1 drop water, 10 drops H2C2O4, 1 drop KMnO4.- Experiment 3: 5 drops water, 5 drops H2C2O4, 2 drops KMnO4.Effect of temperature — use 6 drops water, 5 drops H2C2O4, and 1 drop KMnO4 for three trials at each condition:- room temperature;- 10–12 °C above room temperature;- 20–22 °C above room temperature;- 30–32 °C above room temperature.For each condition:1. Calculate the mean elapsed time.2. Calculate the initial KMnO4 concentration using C1V1 = C2V2.3. Calculate average rate as [KMnO4]initial divided by mean elapsed time.Discussion1. Compare experiments 1 and 2: identify the reactant changed, its concentration factor, the controls, the observed rate effect, and whether the result matches the expectation.2. Compare experiments 1 and 3 in the same way.3. Estimate the time for 1.5 drops KMnO4 and 5 drops H2C2O4 with water adjusted to 12 total drops; explain the estimate.4. Describe the effect of increasing temperature and test the “rate doubles for each 10 °C” rule against the results.5. Estimate the rate 10 °C below room temperature and state whether the elapsed time should be longer or shorter.