Review Approaches for CHEM 132 Mid-term Exam
The exam will be a multiple-choice exam, probably consisting of 14 questions, 4 of which will
be calculations based. Each of the first five experiments will be covered in at least two
questions, one of which wi
DEPARTMENT OF CHEMISTRY AND BIOCHEMISTRY
UNIVERSITY OF MARYLAND
CHEM 132
Mid-term Exam (II) Grey
Spring 2012
Print Name _ Section # _
TA_
Honor Pledge: Copy the pledge, in your own hand-writing, in the box below.
I pledge on my honor that I have not given
Form A
Dixon
EXAM ONE
CHEM 131
October 3, 2006
Name: _
Discussion Section Number:_
(If you get this right you'll get 1 point extra credit!)
"I pledge on my honor that I have not given or received any unauthorized assistance on
this examination"
Signature
The Type of Questions which have Appeared in Recent CHEM 132 Mid-terms
Density
Analyze effect of experimental error on calculated density;
Depends on ability to determine whether mass or volume displaced is changed by
the described error
Does the chang
CHEM 242 Electrophilic Aromatic Substitution
Post-Lab Questions
Post-lab Questions: Answer these post-lab questions neatly and concisely
on the back of the lab report sheet. Use a blank sheet of paper if more
space is needed to answer these questions. You
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These cheat sheets may be shared with friends/classmates
but may not be edited in any way
I create 1-3 cheat sheets per semester, here is a copy of all
orgo cheat sheets to date.
You can find 100+ detailed tutorial videos and more by visi
The Color of Ionic Salts
Prepared by Maryann McDermott Jones, University of Maryland, College Park
)
PURPOSE OF THE EXPERIMENT
To determine which ion-cation or anionis responsible for the color of an ionic salt (and the color of the solution it forms) by
What to Expect on the CHEM 132 mid-term, scheduled for week of March 29-April 2 The exam is a 10 question multiple choice exercise covering Expts# 1-5, worth 50 pts, or 5 pts per question. There will probably be two questions per experiment, one of which
CHEM133 TA: Allen Ng 2. Identify the common structural features of ethanol and 1-decanol. Identify the feature of each liquids which accounts for its solubility in water, and in hexane. Explain the basis for any differences in their solubility behavior in
NAME_Section_ TA_ Team Members _ DATE DUE _ [submitted upon entering lab, one week after experiment performed] Date submitted if not on due date _ _/5
Notebook
+ _/10 + _/18 + _/7
Pre-lab Results Post-Lab
=
_/ 40
Total
Experiment #1 : Identifying a Solid
CHEM131 SIE
Exam I
March 9, 2015
Name: _ Score: _
This exam consists of 25 multiple-choice questions and 5 problems. Please make sure that you
have a complete exam before proceeding. A periodic
Name _ Sec# _ Lab TA _ Teammates _ DATA: Empirical Formula of Zinc Chloride
ZINC CHLORIDE SAMPLES mass of watch glass, g mass of watch glass plus zinc chloride, initial mass of watch glass plus zinc chloride, final mass change on watch glass _ _ _ _
obser
Material Reviewed about CHEM 132 Final Exam, scheduled for Thursday, May 13, 2010 The final exam will be a multiple choice exam covering the last six experiments, #7-12. It will test: your math problem-solving ability (the zinc chloride Empirical formula
Name _ Sec# _ Lab TA _ Teammates _ DATA: I. Establishing the Relative Reactivity of Halogens and Halide Ions
HALOGEN COLORS
Halogen Cl2 Br2 I2
in water
with starch
in CH2Cl
II.
HALOGEN / HALIDE ION REACTIONS Initial/Final* Observations * must know final C
Name _ Sec# _ Lab TA _ Teammates _ DATA: Introducing Equilibrium I. CHROMATE-DICHROMATE EQUILIBRIUM Color observed: 0.1M K2CrO4 plus 3M H2SO4 plus 1M NaOH _
_
_
II. DISSOCIATION OF ACETIC ACID IN WATER Methyl Orange Indicator color: in 1M CH3COOH _
CH3COO
Chapter 19
Aldehydes
and Ketones
Structure,
Properties, Naming,
and Reactivity
1
Electronic Structure of
the Carbonyl Group
C
R'
R
O
C
O
Csp2 Osp2 _ bond + CpOp _ bond
O lone pairs _ orbitals
Carbonyl group is _
Carbonyl C is _
Bond angles:
RCR = _
RCO =
Chapter 18
Nucleophilic Aromatic Sbstitution
Nucleophilic Aromatic Substitution
Substitution is still possible with aryl halides,
although not by the SN1 or SN2 mechanism
Reaction requires a para and/or ortho EWG
2
Nucleophilic Aromatic Substitution Evi
Chapter 15 (and 11) Selected Solutions
15.18 (b)
(d)
+
Question 15.35 gives you a choice between aromatic and not aromatic. See note below.
In these compounds, n from Huckels rule does not equal 0 or an integer.
NOTE:
With respect to classifying cyclic sp
http:/courses.chem.psu.edu/chem38/reactions/reactions.html
Reaction 1. Electrophilic addition of hydrogen halides (HX) to alkenes.
Reagents and conditions
HCl, HBr in ether
KI + H3PO4
room temperature
Mechanistic details
electrophilic addition
carbocation
CHEM 341: Organic Chemistry I
at North Dakota State University
Final Exam - Study Guide
Reactions to know
Substitution of Alcohols
R
+
OH
HX
R
+
X
HOH
SN1 Substitution
H
HCl
OH
- HOH
OH
Cl
Cl
3 carbocation best
2 carbocation ok
SN2 Substitution
H
HCl
OH
1
18.5 Introduction to Transition Metal Catalyzed Reactions (Summary)
SN1 and SN2 reactions do not occur on sp2 carbon (on vinyl or aryl halides). However, reactions
that look like SN1 and SN2 reactions can be carried out using certain transition metal cat
What to Expect on the CHEM 232SE final exam, scheduled for Wednesday,
December 10, 2014, the usual time that the labs meet
The exam consists of 10 multiple choice problems covering experiments # 6-11 and IR
spectroscopy. The exam is worth 50 points and ea
CHEM242 NMR Workshop
Possible Compound Structures
Compound #1
Compound #2
Compound #3
O
O
O
O
O
OCH3
Compound #4
Compound #5
Compound #6
NH 2
O
O
O
O
O
HO
Compound #7
H 3C
CH3
Compound #8
Compound #9
O
O
O
H 3C
Compound #10
Compound #11
O
Compound #12
O
O
Review Worksheet Answers
Chapters 15 17
3 (negative charge on most + C)
5 (negative charge on most O)
.
:O:
+.
.
CH3CH2OCCHCN:
4 (negative charge on more N)
2 separation of charges; negative
charge on more N
1 separation of charges; negative
charge on
First Exam Name V
CHEMISTRY 24] - ORGANIC CHEMISTRY II
Conjugation, Arenes, and Spectroscopy
General Instructions. Read each question carefully before answering. Use the attached blank sheets to work problems,
then place only the answer at the question pl
Chapter 19
Aldehydes
and Ketones
Spectroscopy
1
IR Spectroscopy of Aldehydes and Ketones
CO stretch
Aldehydes
Ketones
1800 - 1680 cm1 (strong)
1730 cm1 (_ character)
1715 cm1 (_ character)
Conjugation _ the carbonyl frequency by about 20-30 cm1
(CCCH
