Exp 5
Draw the aspirin structure.
Student input
Who is the most likely culprit (murderer) of Dr. Chris in section 1 / 2?
Section 1: Rab
Section 2: Aung
What is the chemical formula of magnetite?
Fe3O4
How many Guest Speakers did we invite to our class excluding members of today's Chemistry Majors Panel?
6
Molecular structures that are stereoisomers but are not mirror images of each other are called ______.
Diastereomers
What is the name of the reaction to synthesize aspirin
Esterification
True or False: Lead (II) Chloride is insoluble in Water.
False; slightly soluble
Explain how self-assembly works
Simple components following simple rules interact to form complicated, predictable structures
Name the three processes, mentioned by Professor Jonathan Owen, in which diamond is synthesized.
Detonation; Ball Milling; High Pressure Nanocrystal Synthesis
At what wavenumbers does the O–H stretching vibration typically appear in an IR spectrum?
Approximately 3300 cm-1
In the ferric chloride test, the color change to violet is an indication of which group?
Phenolic -OH group
What anion was the brown ring indicative of?
Nitrate anion
Upon the application of a magnetic field, Ferrofluid develops characteristic nanoscale shape. What is this shape?
Spike-like
What is the name of the chemical method for creating peptides by assembling amino acids in a step-by-step manner while anchored to an insoluble solid support, such as a resin bead?
Solid-Phase Peptide Synthesis
How many d-orbitals are there? Name them.
5; dxy, dyz, dxz, dz2, and dx2- y2
Why use acetic anhydride to donate the acetyl group donator?
It is a good acetyl group donor since it has two electrophilic carbonyls activated by each other and excellent leaving group
Solubility Question: Calcium Carbonate is ___________ in water in acidic condition but ___________ in basic condition.
Highly Soluble; Insoluble
What is the chemical formula of eicosanethiol?
C20H42S
What is the current Carbon Dioxide emissions level (in ppm) on Earth in 2026? Answers closest to the nearest hundred ppm level will be accepted.
433 ppm
On a Thin Layer Chromatography Plate, what is the maximum Rf value that you can calculate (though it is heavily undesired)?
1
In synthesis of aspirin from salicylic acid, what peaks will disappear/ appear for the product, aspirin as compared to the reagent, salicylic acid?
Disappear - broad phenolic OH stretch (~3200-3550 cm-1)
Appear - ester C=O stretch (~1750-1770 cm-1), Ester C-O stretch (~1200-1300 cm-1)
Predict the product, balance the chemical equation, and notate the chemical states of all species in the following reaction: Pb(NO3)2 (aq) + 2 KI (aq) --> ?
PbI2 (s) + 2 KNO3 (aq)
When a drop of water was placed on a self-assembled monolayer surface, it form an exact circular shape. Characterize this droplet.
Superhydrophobic
Distorted Octahedral Complexes can be the result of which type of phenomenon that describes the molecular displacement that reduces its symmetry?
Jahn-Teller Effect
Where is the d6-Acetone peak located (in ppm) on a 1H NMR Spectrum? What type of signal is observed?
2.5 ppm; Singlet