Exam 1 2007 - Name Chemistry 112 Exam 1 Question 1 2 3 4 5...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Name _________________________ Chemistry 112 Exam 1 February 23, 2007 Question Points Possible Points Earned 12 0 21 5 32 0 42 5 51 2 68 Total 100
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
1. a. On the reaction coordinate diagram below label the x and y axes, 2 transition states, 2 activation energies, /\ H, reactants, products, and reaction intermediates. b. What is the difference between a transition state and a reaction intermediate? c. Is the first or the second step in the reaction the rate limiting step and why? d. Is this reaction exothermic or endothermic? (20 points)
Background image of page 2
2. Consider the following kinetic data for the bromination of acetone (CH 3 COCH 3 ). (15 points) Run [CH 3 COCH 3 ] (M) [Br 2 ] (M) [H 3 O + ] (M) initial rate (M/s) 1 0.30 0.05 0.05 5.7 x 10 -5 2 0.30 0.10 0.05 5.7 x 10 -5 3 0.40 0.05 0.20 31.0 x 10 -5 4 0.40 0.05 0.05 7.6 x 10 -5 a. What is the order of the reaction for each species? b. What is the value of the rate constant? (Calculate using the data from Run 1) c. Write the rate law for the reaction.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 02 04 06 0 8 0 1 0 0 1 2 0 time (s) [HOCN] 3. A student collects the following data in lab concerning the trimeriation of isocyanuric acid at 30 o C.
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 7

Exam 1 2007 - Name Chemistry 112 Exam 1 Question 1 2 3 4 5...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online