D1 Trivia Flashcards
1
Q
Cobalt-60
A
cancer therapy
2
Q
Thallium-201
A
heart scan
3
Q
Tritium
A
measure water content in body
4
Q
Mercury-197
A
kidney scan
5
Q
Calcium-48 and Nickel-64
A
- bombarded with lead isotopes
- to produce superheavy elements
6
Q
NaI w/ Th(II)I2
A
used in scintillation counter to count gamma particles
7
Q
Chromium-51
A
diagnose albinism
8
Q
Gallium-67
A
whole body scan for tumors
9
Q
Selenium-75
A
pancreas scan
10
Q
Krypton-81
A
lung ventilation
11
Q
Iodine-131
A
thyroid cancer/malfunctions
12
Q
Strontium-90
A
radioactive tracer for eye treatments
13
Q
oil of wintergreen
A
methyl salicylate
14
Q
ripening fruits
A
ethylene
15
Q
alar daminozide
A
- C6 H12 N2 O3
- plant growth regulator
16
Q
The person’s sense of smell and taste depend on specific biochemic receptors present in a person’s nose and mouth. In 2004, a Nobel Prize was given to the researchers who established this fact and identified the the type of organic compound associated with the sense of smell and taste. The chemical identified was;
A
rhodopsin
17
Q
The distance of the Earth to the nearest
normal galaxy is calculated to be:
A
2x10^22 m
Andromeda Galaxy
18
Q
Which type of fatty acid should people avoid ingesting, saturated or unsaturated and why?
A
Saturated, because the risk of cardiovascular disease is increased
19
Q
What other particle is formed in the fusion of
two protons to yield deuterium?
A
positron
20
Q
Which isotope is produced when Polonium-
216 decays by emitting an alpha particle followed by two beta particles?
A
Polonium-212
21
Q
Process of breaking down a large isotope
into smaller isotopes.
A
nuclear fission
22
Q
In a dehydration reaction where water is lost, an organic compound C3H8O reacts with concentrated
phosphoric acid and a product is formed. This product rapidly decolorizes a solution of bromine in tetrachloromethane. What is this product?
A
Propene
23
Q
An adiabatic process is one in which the system under investigation is thermally isolated so that there is no exchange of
heat with the surroundings. Thus, the work done on a closed system in an adiabatic process is _____.
A
Equal to the increase in internal energy of the system
24
Q
Le Chatelier’s Principle.
A
states that when a stress is placed on a
system in equilibrium, the system tends to change in a way that relieves the stress.
25
These compounds are formed by the reaction of acids with alcohols.
esters
26
To which subatomic particle does each statement refer to a.) has a positive charge; b.) is found outside of the nucleus; c.) has the smallest mass; d.) has a negative charge?
proton, electron, electron, and electron
27
Clapeyron Equation
It postulates that if the temperature and pressure are both change in such a way
as to keep the chemical potentials of two phases equal to each other, the rates of
change are given by the equation.
28
Which would make more efficient cold
compress, ethanol or methanol?
Methanol
29
Name the major physiologically active substances that comes from: bark of the willow tree, the pituitary gland, the sap of the poppy and the belladonna plant.
Salicin, beta-endomorphin, opium, atropine
30
The element neon was discovered in 1898
by:
Travers and Ramsay
31
buckyball
fullerene
32
A solution of cation gives a crimson red
flame. This flame test is a confirmatory test
for:
Sr2+
33
What is the color of nickel chloride?
yellow
34
Substances whose solutions change color
due to changes in pH.
Indicator
35
It is an organic reaction that converts an
alcohol into an alkyl chlorine using
triphenylphosphine and carbon tetrachloride.
Appel Reaction
36
major component of lecithin.
Phosphatidylcholine
37
Polymer used in bullet proof vest
Linear Polyethylene
38
Author of Octet Rule
Gilbert Lewis
39
Which of the following indicators is used in
EDTA titration?
A. Solochrome C. Eriochrome Black T
B. Calmagite D. All of these
D. All of these
40
The theory of resonance was developed by
__ in order to further explain the bonding
structures of molecules or ions not covered
by the Lewis Octet rule.
Linus Pauling
41
Taurine, a Beta amino acid belongs to the
acidic group of:
–SO2OH
42
What did Clausius postulate?
A. The Clapeyron equation was simplified by assuming that the vapor obeys the ideal gas law and by neglecting the molar volume of the
liquid VL in comparison with the molar volume of the gas VG
B. The Clausius-Clapeyron equation does not apply to this situation
C. The Clausius-Clapeyron theory is applicable only for vaporization
and sublimation condition
D. Both scientists apply their postulates to linear and curvilinear
representation
A
43
Identify the organic compounds in the following equation:
CH3CH(OH)CH2CHO → CH3CH=CH + H2O
carbonyl aldehyde; cis or trans-isomer
44
Higher melting point
Substance A - Lauric Acid and Glycerol
Substance B - Stearic Acid and Glycerol
Substance B
45
What is the theory in two or three dimensional collision to be applied when playing billiard balls and in order to sink the target ball in the corner pocket?
Where two equal masses undergo a glancing elastic collision
46
When travelling at NLEX at 80mph, a stopped car in front causes you to suddenly skid to stop. What happened to the kinetic energy of the moving car?
All of it transferred to the road and surroundings
47
When travelling at NLEX at 80mph, a stopped car in front causes you to suddenly skid to stop. What happened to the kinetic energy of the moving car?
All of it transferred to the road and surroundings
48
Are reversible processes frictionless? Why?
Because when reversed, retraces its forward
path and restores the initial state of the system and surroundings
49
What is the Nujol Mull in organic chemical reactions?
It is a mass spectrum technique and is obtained by grinding up a solid which is mixed with mineral oil to form a suspension for IR
spectroscopy
50
Classify each of the following as homogeneous or heterogeneous:
I. a door
II. the air you breathe
III. a cup of coffee (black)
IV. the water you drink
V. salsa
VI. your lab partner
hetero, homo, homo, homo, hetero, hetero
51
Where in the body does fatty acid synthesis occur?
Cytoplasm
52
What structural characteristics do citric acid and malic acid have in common?
They are both hydroxy acids
53
What is the difference between a coenzyme and a cofactor?
Cofactor is more generic; it means a nonprotein part of an enzyme. A coenzyme is an organic factor.
54
Who discovered phenolphthalein?
Adolf von Baeyer
55
How many high-energy phosphate bonds are in the ATP molecule?
2
56
Classify each of the following as an element, a compound, or a mixture.
a) diamond
b) sea water
c) gasoline
d) wine
e) a pebble
f) bronze
element, mixture, mixture, mixture, mixture, mixture
57
Which has higher absolute entropy at a temperature of 250C, cyclopropane or propylene? Why?
Propylene due to the free rotation around the carbon-carbon single bond.
58
Glucose is the only carbohydrate compound that the brain can use for energy. Which pathway is mobilized to supply the need of the brain during starvation?
gluconeogenesis
59
Crystals of a material are suspended in the middle of a cup of water at 2 deg C. How might you enable the crystals to rise to the surface of the water so that you can harvest them?
Increase the temperature of water to 4 deg C
60
Predict the order of the melting points of triglycerides containing fatty acids, as follows:
I. Palmitic, palmitic, stearic
II. Oleic, stearic, palmitic
III. Oleic, linoleic, oleic
III < II < I
61
How many molecules are in one drop of water?
1.7x10^21
62
Which of the following objects are chiral (assume that there is no label or other identifying mark)?
a) Pair of scissors
b) Tennis ball
c) Paper clip
d) Beaker
e) The swirl created in water as it drains out of a sink or bathtub
chiral, achiral, achiral, achiral, chiral
63
How to differentiate alkane alkene and alkyne?
reaction with Br2
64
Olvanil
C26 H43 NO3
65
Determine which of the following will float or sink in water: balsa wood, ethylene, glycol, table salt, ethanol.
float, sink, sink, float
66
Answer the following questions
Is H+ (aq) capable of oxidizing Cu(s) to Cu2+ (aq)?
Is Fe3+ (aq) capable of oxidizing I- (aq)?
Is H2 (g) capable of oxidizing Ag+ (aq)?
no, yes, yes
67
Notation on alkane containing Cl
chloro
68
We heat 50.0 g of an unknown substance by adding 205 cal, and its temperature rises by 7.0°C. Identify the substance.
ethanol
69
The purpose of control rods in a fission reactor is to:
absorb neutrons generated in the fission process.
70
What is the difference between a coenzyme and a cofactor?
Cofactor is more generic; it means a nonprotein part of an enzyme. A coenzyme is an organic factor.
71
Color of lead chromate
yellow
72
Color of lead chromate
yellow
73
hydrophilic, hydrophobic, or amphipatic: glucose
hydrophilic
74
hydrophilic, hydrophobic, or amphipatic: stearic acid
amphipatic
75
hydrophilic, hydrophobic, or amphipatic: soap
amphipatic
76
hydrophilic, hydrophobic, or amphipatic: fatty acids
hydrophobic
77
in order of decreasing acidity:
phenols, alcohols, carboxylic acids
carboxylic acid > phenol > alcohol
78
test for saturated hydrocarbons
bromine water test (turns red/brown if saturated)
79
glutamic acid
C5 H9 NO4
80
tyrosine
C9 H11 NO3
81
arginine
C6 H14 N4 O2
82
phenylalanine
C9 H11 NO2
83
Olvanil
C26 H43 NO3
84
DNA
C15 H31 N3 O13 P2
85
sunscreen vs sunblock
sunscreen - spf; prevents portion of UV from reaching screen
sunblock - prevents all UV by reflecting away from screen
86
T/F: It is possible to have zero activation energy for an endothermic reaction.
F
87
algal bloom due to overabundance of nitrogen
eutrophication
88
energy supplied by the sun
1000 J/m2s
89
ionization energy trend
N- < N < N+
90
atomic radius trend
N+ < N < N-
91
RA 8981
PRC Modernization Act of 2000
repealed PD 223
92
date of approval of PRC Modernization Act (RA 8981)
December 5, 2000
93
result of heating iodine crystals
turns into purple vapor
94
11-tetradecenyl acetate
C16 H30 O2
95
angelic acid
C5 H8 O2
2-methylbut-2-enoic acid
96
distance from most remote known quasar
1.4 x 10^26
97
distance from most remote galaxies
9 x 10^25
98
mean orbit radius of Earth about Sun
1.5 x 10^11
99
distance from sun to nearest star (proxima centauri)
4 x 10^16
100
what happens w free radicals
unite with covalent bond formation
101
most abundant isotope of Hydrogen
protium
102
highest percentage by mass in seawater
Cl (55 g/kg)
103
Cellulose
C6 H10 O5
