Chem 2310 Exam 1: Key Concepts and Practice Questions
School
Iowa State University**We aren't endorsed by this school
Course
CHEM 231
Subject
Chemistry
Date
Dec 11, 2024
Pages
9
Uploaded by CaptainManateeMaster1214
Chem 2310Exam 1 SEPTEMBER Instructure: D. Youmans•Do NOT open the exam until you are instructed to do so. •Check and make sure you have all the pages (we are not responsible for missing pages if claims of missing pages are made AFTER the exam) During tests, all electronic devices (e.g., cell phones, iPods, laptops, etc.) and papers other than your test sheets must be put away and completely out of sight. All book bags, books, etc., as well as jackets, coats and hats, etc., are to be on the floor UNDER your seat. Please refrain from conversation until you leave and are outside the door. Thank you!Last Name_____________________ First Name_____________________ Last Name_____________________
First Name_____________________ Instructions •Do NOT open the exam until you are instructed to do so. •Check and make sure you have all the pages (we are not responsible for missing pages if claims of missing pages are made AFTER the exam) During tests, all electronic devices (e.g., cell phones, iPods, laptops, etc.) and papers other than your test sheets must be put away and completely out of sight. All book bags, books, etc., as well as jackets, coats and hats, etc., are to be on the floor UNDER your seat. Please refrain from conversation until you leave and are outside the door. Thank you!1)Give the IUPAC namefor each of the following compounds.
2)Give the molecular formulafor the following bond-line structures. 3)Answer the following questions about the molecule below. a)What is the hybridization of carbon 1 (C1): b)What is the hybridization of carbon 1 (C1): c)Circle the functional group that has an IR stretch around 1700 cm-14)Draw 2 additional resonance structures for the structure below. Include necessary double bonds, lone pairs, and formal charges. Show arrow-pushing of electrons when yougo from one structure to another.
5)Draw 2 constitutional isomers of the following molecule. 6)Answer the following question on the acid base chemistry below. a)Answer the questions about the acid base equilibrium.
a)Draw the curved double headed arrow for the proton transfer step. b)Draw the CA and CB in the boxes. c)Using the pKa values determine what side of the equilibrium is favored. b)For each pair circle the most acidiccompound. 7)Draw the product of the following reaction, With formal charges. Labelthe reactants as aLewis acid and a Lewis base. Draw the curved arrows to show the electron movement.
8)Answer the following questions. a.Draw the most stable conformationof trans-1-ethyl-3propylylcyclohexane. Remember to put the substituents on the appropriate carbon atoms. (Groups need to clearly be either axial or equatorial) b.Draw Complete the structure on the right to show the result of the ring flip. (Groups need to clearly be either axial or equatorial) -Extra problems1.Draw Complete the structure on the right to show the result of the ring flip. (Groups need to clearly be either axial or equatorial) Circlethe most stable structure
2.Draw the mechanism of the proton transfer. Use double headed arrows. Draw products and analyze equilibrium.
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