Question

Can someone explain how to find the Initial Rate and how to graph the points pls??

DATA:

TIME- 5s 10s 15s 20s 25s 30s

mL OF OXYGEN GAS COLLECTED

5mL H2O2: 4, 12, 20, 25, 30, 34

3mL H2O2: 4, 9, 14, 18, 21, 23

1mL H2O2: 0, 2, 3, 4, 5, 6

Answer 1

To find the initial rate of a reaction and graph the points, you need to determine the change in the concentration of the reactant over time and calculate the rate of the reaction at the beginning (initial) stage. Here's how you can do it:

1. Calculate the change in the concentration of the reactant over time:
- For the 5 mL H2O2 data: The initial concentration is 4 mL, and the final concentration is 34 mL. The change in concentration is 34 mL - 4 mL = 30 mL.
- For the 3 mL H2O2 data: The initial concentration is 4 mL, and the final concentration is 23 mL. The change in concentration is 23 mL - 4 mL = 19 mL.
- For the 1 mL H2O2 data: The initial concentration is 0 mL, and the final concentration is 6 mL. The change in concentration is 6 mL - 0 mL = 6 mL.

2. Determine the time interval for the initial rate:
- Look at the data and identify the time period during which the change in concentration is most significant. This time interval typically corresponds to the initial stage of the reaction when the concentration change is the highest.

3. Calculate the initial rate:
- Divide the change in concentration by the time interval you determined in step 2.
- For example, if the change in concentration is 30 mL and the time interval is 5 seconds, the initial rate would be 30 mL / 5 s = 6 mL/s.

4. Graph the points:
- Create a graph with time (x-axis) and concentration (y-axis).
- Plot the data points for each set of H2O2 concentrations at their respective time intervals.
- Connect the data points with a smooth curve or line to represent the trend of the reaction.
- You can also add a trendline or calculate the slope of the graph to analyze the rate of the reaction over time.

By following these steps, you can find the initial rate of the reaction and graph the data points to visualize the relationship between the concentration and time.