Question

2. When using the method of initial rates to determine the reaction order of each individual reactant, why must data only be used in which one reactant is changing concentration but not the other reactants?

3. Briefly explain why the number of total drops being mixed in each experiment is kept constant throughout all five experiments.

4. Sketch a molecular‐level picture that illustrates why reaction rate increases when the concentration of a reactant is increased. Note – this might be best accomplished by using two pictures, one picture showing a low concentration of reactant and one with a higher concentration.  Take a picture of your hand‐drawn sketch and insert the image into your assignment submission.  After your picture, explain how your picture illustrates the differences that will be observed in the reaction rate at the two different concentrations.

5. Consider a reaction involving two reactants (A and B) in which the reaction is first‐order in reactant A and second‐order in reactant B.

a. Write the rate law for the reaction.

b. By what factor would the reaction rate increase or decrease if…  [A] is tripled and [B] is doubled  [A] is doubled and [B] is halved

Answer 1