When the datas done being collected remove the stopper and dump the products in

When the datas done being collected remove the

This preview shows page 4 - 5 out of 5 pages.

out. When the data’s done being collected, remove the stopper and dump the products in an inorganic waste jar. On the graph, tap and hold where the curve begins to increase, slide the stylus across the graph until it starts to plateau again, click the Analyze menu and choose ‘Curve Fit’ and select ‘Linear’. Record the slope as the initial rate of reaction and hit OK, then hit the cabinet button, on the right and clean everything use in the first test. Repeat the paragraph above for the rest of the tests except… For Test #2: add 1 mL of distilled water to the 1 mL of KI, in the Beral pipette. For Test #3: use the original 1 mL of KI (no added distilled water) and dilute 2 mL of hydrogen peroxide with 2 mL of distilled, deionized water. For Test #4: put the beaker of water on a hot plate and get the water to somewhere between 40 and 45 degrees Celsius, remove the beaker from the hot plate as soon as the
Image of page 4
reaction begins. Rate Law Expression : Rate=k[H 2 O 2 ][ I - ] Activation Energy : E a =.020 kJ/mol Discussion : The rate determining step for this experiment was the first step, H 2 O 2 + I - → IO - + H 2 O, we know this because the coefficients of the reactants correspond with their respective orders. Hydrogen peroxide and iodine are first order for the rate law expression, which was determined in the experiment. This determined rate law does match the rate proposed and have
Image of page 5

You've reached the end of your free preview.

Want to read all 5 pages?

  • Summer '10
  • KIMBALLDOUGLAS
  • Chemical reaction, ml

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes