Science Buddies: "Ask an Expert"

Hello
My students are preparing to do a modified version of your Iodine Clock lab later this month as part of learning about reactions. I would like to prepare them to know how to set up and graph reciprocal reaction rates as this lab. I understand that the reciprocals go on the y axis, what I'm unsure of is how they are arranged on that axis. Is there an online resource that demonstrates how these types of graphs are set up so we can use it in preparation?
Link for reference: https://www.sciencebuddies.org/science- ... n-kinetics.

Hi!

For this type of an experiment, I would have the students make a line graph so that you can demonstrate the change in the reciprocal reaction rates. In order to do this, I would suggest using small, consistent intervals for the y-axis, so that you can ultimately see the most change on the graph without skewing the results. These intervals depend on the average results you are getting, but I would stick to thousandths or tenths of a second. Here’s a graph that uses thousandths of a second to plot out the y-axis. That’s the best way to arrange the values on the y-axis.
This graph is from UK essays; here’s the link if you want to take a look: https://www.ukessays.ae/essays/chemistr ... k-reaction

If you need more help, then you can let me know some of the results you got from the experiment so I can help you find appropriate intervals for the y-axis. Or if you have any more questions feel free to let me know