10Wmid1key - Name ID CHEMISTRY 140B 1st Midterm Exam 1...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: ____________________________ ID: _____________________ 1 CHEMISTRY 140B 01/26/10 1st Midterm Exam Average: 110 corresponds to the lowest B(-) Standard deviation: 30 Instructions: 1: This exam consists of 7 pages , including this page. ( Page #7 is blank). At the beginning of the examination period, put your name at the top of each page. 2. This exam accounts for 25% of the final grade (150 points total). 3. You can use the backside of each page, or page #7, as a scratch paper. However your final answers must be clearly written within the designated box that follows after each question. At the end cross out all unused space . 4. You may use pen or pencil. However exams completed with pencil will not be regraded. 5. The grades will be announced on Thursday 01/28/09. If you wish to have your exams regraded, you may submit them to me before 02/02/09. After 02/04/09 all grades are final. 6. The exams will be available from my assistant's office at 5224B during 10:00am-5:00pm everyday. 7. Read carefully the instructions for each problem. 8. Keep your eyes in your own exam!!! GOOD LUCK Problem Points Score 1. 30 ________ 2. 50 ________ 3. 40 ________ 4. 30 ________ TOTAL 150 _______
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
Name: ____________________________ ID: _____________________ 2 Problem 1 (30 points) In compound A shown add the missing hydrogens where appropriate and then indicate the following: 1. expected amount of signals in the proton-decoupled 13 C NMR: 3. expected splitting pattern of each signal in the 1 H NMR. Cl O CH 3 O CH 3 4 . Based on the above, draw how the 1 H NMR of compound A would be. Show clearly: a. the relative integration for each signal b. the relative chemical shift of each signal (label each signal as H1-H9 as in the structure) b. the splitting patterns (spin-spin coupling) for each signal
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 6

10Wmid1key - Name ID CHEMISTRY 140B 1st Midterm Exam 1...

This preview shows document pages 1 - 3. Sign up to view the full document.

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