- Question 01:
Which of the following is a rate law, where the units of rate are equal to the units of the rate constant?
- Question 02:
Which answer choice correctly matches the integrated rate law shown below?
1/[A]t = k t + 1/[A]0
- Question 03:
A proposed mechanism for a given chemical reaction is given below.
STEP 1 (fast) A + B → J
STEP 2 (slow) J + A → C + F
STEP 3 (fast) F + A → C + D
Which combination of statements is consistent with the data above?
- Questions 04-06:
Questions 4-6 relate to the popular demonstration called “Elephant’s Toothpaste”, in which the mechanism is believed to be as follows.
STEP 1 H2O2 + I- → H2O + OI-
STEP 2 H2O2 + OI- → H2O + O2 + I-
Which species is the catalyst in the reaction?
- Question 05:
Which species is an intermediate?
- Question 06:
Which chemical equation consistent with the mechanism provided?
- Questions 07-10:
A reaction of the reactants A and B, to produce products X and Y, can be summarized as;
3A + 2B → 2X + Y
The kinetics of the reaction are studied and data collected. Use the data in the table below to answer Questions 07-10.
What is the rate law for the reaction?
- Question 08:
What is the value of the rate constant (with correct units)?
- Question 09:
In experiment 3, what would be the rate of change of concentration of B measured in M sec-1?
- Question 10:
If Z is an intermediate, which of the following is a possible slow step in the mechanism?