(CHAPTER 20 and 21)
1. Explain how pyrrole is isoelectronic with the cyclopentadienyl anion.
What is the difference between the cyclopentadienyl anion and pyrrole? Draw
resonance forms to show the charge distribution of the
Synthesis of Methyl Orange
In this experiment the azo dye methyl orange is prepared by a electrophilic
substitution by a diazo coupling.
Figure 1. p- Dimethylamino-Azobenzesulfonic Acid (Methyl Orange)
Methyl Orange is an azo dye and a pH indicator very o
Spectroscopy of Cobalt Solutions
Lab Partners: Peter Tiet, Michael Gutierrez
In this experiment, preparation of standard solution, dilution and concentration was
practiced. An absorption spectrum was then built and Beers law was a
The Three-Dimensional Structure of Proteins
Structure and properties of the peptide bond
Structural hierarchy in proteins
Structure and function of fibrous proteins
Structure analysis of globular proteins
Protein folding and dena
Function of Globular Proteins
Key topics in protein function:
Reversible binding of ligands is essential
Specificity of ligands and binding sites
Ligand binding is often coupled to conformational
changes, sometimes quite dramatic (Induced Fi
Amino Acids, Peptides,
Structure and naming of amino acids
Structure and properties of peptides
Ionization behavior of amino acids and peptides
Main Agents of Biological Function
enolase (in th
Thank you for participating in todays Transfer Student Reception! Your loved one is taking a very
important step as they transfer from East Los Angeles College (ELAC) to a university. Although it is
an exciting time, this opportunity for progre
Why ELAC, Why Now?
Paulina P. Palomino
ELAC Counseling Faculty
April 18, 2016
o Cultural Wealth
o Distinguished honor of having 7 Cooke Scholarship Recipients
o Greater Outcomes East L.A.
o Transfer and
JLMBC Wellness Proposal
District Budget Committee
May 18, 2016
Joint Labor Management Benefits
The mission of the Joint Labor-Management
Benefits Committee is to select and review the
District's health benefits plans and providers to
Running head: THE EFFECTS OF TYPES OF ATTIRE AND JOB STATUS
The Effects of Attire and Job Status on the Perception of Females in the Workplace
East Los Angeles College
THE EFFECTS OF TYPES OF ATTIRE AND JOB STATUS
The Effects of Types of
Formal Lab Report
Determination of the gas constant.
Report presented in the proper order
Clearly state what was done.
Clearly state how it was done.
State all major results
Uses the pa
Title: Methods of Evaporation and Filtration Used to Separate Mixtures
Partners: Shuxin He
Date: March 3, 2016
Using physical means (gravity filtration, vacuum filtration, etc.) to separate homogeneous. Purify a
compound by recrystallizing.
Mass of dry evaporating dish
Mass of dish with NaCl solution
Mass of dish (cooled)
Mass Percent of saturated NaCl solution
Use of the Integrated Rate Equations (Section 15.5)
Rate equations are differential equations that in simple cases can be easily integrated using
standard methods of calculus. For example, if the rate law has the form
the equation may be integrated (f
Collision theory - atoms, ions, and molecules must collide in order to react.
For any reaction to occur, the particles must come in contact with each other.
Only a small amount of collisions produce reactions.
Reaction Mechanism - elementary process
A mechanism for a reaction is a collection of elementary processes (also called
elementary steps or elementary reactions) that explains how the overall reaction proceeds.
A mechanism is a proposal from which you can
Chemical Equations and Equilibrium Constant Relationships
Properties of the Equilibrium Constant, Kc for homogeneous equilibria
In terms of Kc, write the mass action expression for each chemical reaction listed below
19-4 Criteria for Spontaneous Change:
The Second Law of Thermodynamics.
Stotal = Suniverse = Ssystem + Ssurroundings
The Second Law of Thermodynamics:
Suniverse = Ssystem + Ssurroundings > 0
All spontaneous processes produce an
increase in the entropy of
BALANCING OXIDATION-RE DUCTIDN EQUATID N5
Determine the elements changing oxidation state. This determines the compounds for each
IN ACIDIC SOLUTION: Write the oxidation and reduction half-reactions following these steps:
- balance all atom
So J K-1mol-1
c. Calculated the S total for the reaction above at STP. Is the reaction spontaneous ?
4). Free energy change from entropy and
DISCLAIMER: these notes are provided to assist you with mastering the course material but they are not intended as a replacement of the
lectures. Neither do they contain the comments and ancillary material of the lectures; they are just a set of points th
1). Molecular hydrogen can be made from methane gas by the reaction below. How is the rate of
disappearance of CH related to the rate of appearance of H ?
CH (g) + H O (l) CO (g) + 3H (g)
D) none of these
1). Which of the following statements is false regarding the equilibrium constant, K ?
A) K for a reaction at a particular temperature always has the same value.
B) K for the reverse reaction is the negative of K for the forward reaction.
C) The n
Supplemental Instruction - Chapter 14
- . ' ' . _:;~.j ,- "-:~. - "-.;:tJ .~.~: :.".
1. The rate law for the reaction, 2N0(g)
+ 02(g) -
A reaction is performed by mixing 0.020 mol o