Chem14C_FA07_Practice_E2A_key

Chem14C_FA07_Practice_E2A_key - Exam 2 Practice Questions...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Exam 2 Practice Questions _ Answers 1 1. Answers to questions a-e i. CH 3 CH 2 CH 2 OH ii. CH 3 C CCH 2 CH 3 iii. CH 3 CH 2 CH(NH 2 )CH 3 iv. (CH 3 ) 3 N v. CH 3 CO 2 CH 2 CH 3 vi. CH 3 CH 2 CO 2 H a.– Which molecule above has a significant band in the IR at 3400 cm -1 (strong and broad)? Ans: CH 3 CH 2 CH 2 OH b. Which molecule above has a significant band in the IR at 2220 cm -1 (medium) Ans: CH 3 C CCH 2 CH 3 c. Which molecule above has a significant band in the 1720 - 1780 cm -1 range of its IR spectrum? Ans: CH 3 CO 2 CH 2 CH 3 d. Which compound would be expected to show intense IR absorption at 1715 cm -1 ? Ans: CH 3 CH 2 CO 2 H e. Which compound would be expected to show intense IR absorption at 1746 cm -1 ? Ans: CH 3 CO 2 CH 2 CH 3 f. How could IR spectroscopy be used to distinguish between the following pair of compounds? i. (CH 3 ) 3 N and CH 3 NHCH 2 CH 3 Ans: (CH 3 ) 3 N : N0 N-H and therefore, no N-H Band CH 3 NHCH 2 CH 3 : shows N-H band ii. CH 3 CH 2 CO 2 CH 3 and CH
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/05/2008 for the course CHEM 14C taught by Professor Hardinger during the Spring '08 term at UCLA.

Page1 / 3

Chem14C_FA07_Practice_E2A_key - Exam 2 Practice Questions...

This preview shows document pages 1 - 2. Sign up to view the full document.

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