sample_exam_Exam_1 - CHEM 241 SAMPLE EXAM #1 o 1.(5 pts) In...

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

View Full Document Right Arrow Icon
CHEM 241 SAMPLE EXAM #1 1.(5 pts) In the recrystallization lab you cooled the solution from boiling to 0 o C. What would be the consequence of only cooling this solution to 35 o C instead of 0 o C? 2. (6 pts) What would be the consequence of trying to carry out a recrystallization of a mixture that was 60% compound to be purified and 40% organic impurity? 3. (6 pts) In the acid base extraction lab, why did you use 6 M NaOH instead of 1M NaOH to neutralized the acid extracts? 4. (6 pts) In the acid/base extraction lab what was the structure of the compound that was isolated when you neutralized the acidic extracts with 6 M NaOH?
Background image of page 1

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

View Full DocumentRight Arrow Icon
5. Equal amounts of A, C and H were mixed together and the mixture is distilled. a) (6 pts) What would be the order in which each compound would be distilled over (first, second and third)? b) (8 pts) Circle the gas chromatography trace depicted below which would most likely represent the 1 st mL fraction collected from a simple distillation of A,C and H. NH
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.

This note was uploaded on 06/30/2008 for the course CHEM 241 taught by Professor Unsure during the Spring '06 term at University of Washington.

Page1 / 6

sample_exam_Exam_1 - CHEM 241 SAMPLE EXAM #1 o 1.(5 pts) In...

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