Day 1 PBE concepts (From 2012~) Flashcards
mixed pbe concepts, di ko na naisama calcs here, saka may separate deck for peeps (145 cards)
1
Q
Distance from earth to most remote known quasar
A
1.4x10^26
2
Q
Distance from earth to most remote known normal galaxy
A
9x10^25
3
Q
distance from the Earth to most remote known normal galaxies (M 31, the andromeda galaxy)
A
2x10^22
4
Q
Distance from the Sun to nearest star (Proxima Centauri)
A
4x10^16
5
Q
One lightyear
A
9.46x10^15
6
Q
Mean orbit radius of the earth about the Sun
A
1.5x10^11
7
Q
Mean distance from Earth to the Moon
A
3.84x10^8
8
Q
Distance from the equator to the North Pole
A
1.00x10 ^7
9
Q
Mean radius of the Earth
A
6.37 x10^6
10
Q
Typical altitude (above the surface) of the satellite orbiting the Earth
A
2x10^5
11
Q
Length of a football field
A
9.1x10^1
12
Q
Length of a housefly
A
5x10^-3
13
Q
Size of smallest dust particles
A
~10^-4
14
Q
Size of cells of most living organisms
A
~10^-5
15
Q
Diameter of a hydrogen atom
A
~10^-10
16
Q
Diameter of an atomic nucleus
A
~10^-14
17
Q
Diameter of a proton
A
~10^-15
18
Q
Breathe problem
A
3.94x10^9
19
Q
from the Latin word Caesius (Sky blue)
A
Caesium
20
Q
From the latin word Rubidius (Deep Red)
A
Rubidium
21
Q
wasn’t isolated during its discovery; its presence was identified during 1868 Solar Eclipse hence being named after the Greek god of Sun, Helios
A
Helium
22
Q
dictates that the amount of energy that a system may possess is limitless
A
Classical Physics
23
Q
A method of sequencing amino acids in a peptide.
A
Edman Degradation by Pehr Edman
24
Q
Nearest layer of atmosphere from earth’s surface
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
A
a) Troposphere
25
Pollutant produced from coal and petroleum.
Sulfur dioxide is the largest. Followind by NOx and COx (double check sa perrys chap 22, may table doon bandang air pollutant)
26
What do you call the blanket of pollutants?
Smog
27
What is the center of an atom
Nucleus
28
Hydrocarbon, also called alkane, any of the saturated hydrocarbons having the general formula C nH 2n+2,
paraffins
29
It us an organic reaction where the unsaturated bonds of alkenes, alkynes, or azo compounds are cleaved with ozone.
Ozonolysis
30
How manny Amino acids in human protein?
20 amino acids. 9 of them are essential or cannot be made by the body.
31
Who discovered x-ray?
Wilhelm Conrad Roentgen
32
Number of carbon atoms in olvanil?
26 (C26H43NO3)
33
What is the chemical formula and molecular weight of 11-tetradecenyl Acetate?
C16-H30-O2 (254 g/mol, minsan may typo sa choices, 25.4 nakalagay )
34
What is the product when ethanoyl chloride is reacted with propanol?
Propane ethanoate and HCl
35
What is the primary use of ethylene?
Ripening of fruits
36
What is the common contaminant in the BTEx process?
Benzene, Toluene, Ethylbenzene, Xylene
37
Where does an enzyme capsaicin commonly found?
Capsicum
38
What is the other name of bulk temperature?
Mixing Cup Temperature
39
Choose the common methods in the removal of fine particle in hot airstream common in cement production?
ESP
40
What is the method that Wohler do to break the vital force theory in nature?
Heating of NH4Cl with AgCN to form Urea
41
Arrange the following substance in terms of increasing melting point: Palmitic, Palmitic, Stearic; Palmitic, Oleic, Stearic; Oleic, Oleic, Stearic.
Oleic, Palmitic, Stearic
42
What is the common form of nitro-glycerol?
Trinitroglycerin, Nitroglycerin or Nitrate Vasodilator
43
Definition of polar covalent
a) Unbalance electron with unequal sharing of electrons
b) Bonding of heteronucleus with unequal sharing of electrons
44
What happen to the pH of carbonated drinks if it open in atmospheric condition?
a) Increase
b) Decrease
c) Same
d) Cannot be determined
increase
45
What is the most polar and least polar of the following functional groups: R-OH, R-NH3, R-COOH, C triple bond C and C-C.
Most Polar-C-C
Least Polar- C triple bond C
46
The range of melting point of the fatty acids.
saturated fatty acid- 100 to 110°C
unsaturated- 70 to 85°C
47
What happen to the enthalpy content of the real gases when it is throttled at constant temperature?
What happen to the enthalpy content of the real gases when it is throttled at constant temperature?
48
What is the difference between catabolism, anabolism and metabolism?
METABOLISM is a set of processes performed by the living beings that allow them to interchange MATTER and ENERGY with their environment.
49
What law is the PRC modernization act?
RA 8981
50
Choose whether the following is/are representation of the nuclear fusion:
The big bang theory, the radiant energy of the sun, the formation of deuterium/tritium.
51
When was nitroglycerine discovered, and what is its form?
1847, Ascanio Sobiero, explosive powder
52
Chemical formula of caffeine.
C8H10N4O2
53
Color expected from octahedral atom due to add complex.
pink/red
54
Important element for proper function of thyroid gland.
Iodine
55
What is the process of breaking down a large isotope into smaller isotopes?
a. nuclear fission
b. beta particle emission
c. nuclear fusion
d. gamma ray emission
nuclear fission
56
What is the formula of red lead?
check perrys chap 2
57
Can you synthesize Oxygen from Niyrogen?
Impossible
58
Who is the author of octet rule?
gilbert lewis
59
How does alpha, beta and gamma particle affect the mass number of an atom?
4,0,0
60
Given: Dodecane I. Is it soluble in water? II. Is it soluble in hexane? III. Is it combustible? IV. Is it solid, liquid or gas at room temp. & atmospheric conditions?
no, yes, yes, liquid, less dense
61
Description of a primary and a secondary cell
primary cell- can be recharged
secondary cell cannot be recharged (example, dry cell)
62
Adolf Baeyers contribution in medicine, made by reacting malonic acid and �urea with a catalyst is called
barbituric acid
63
Which layer of the atmosphere contains the ozone layer?
Stratosphere
recall The Smart Man takes The Elevator
(troposphere, stratosphere, mesosphere, thermosphere, exosphere)
64
Composition of acid in acid rain?
sulfuric and nitric
65
How to differentiate alkane alkene and alkyne?
Reaction with Br2
66
Polymer used in bullet proof vest
linear polyethylene
67
What is the nearest layer of the atmosphere?
troposphere
68
Arrange in increasing level of toxicity:
1: heptachlor 2: dieldrum 3: DDT 4: Arsenic 5: Cr
dieldrum, heptachlor, arsenic, ddt, cr
69
A tank is half filled with water, if N2 =1.02 moles and H20 =1.02 moles. What happens to the N2 when dissolved in water?
remains the same
70
Other term of earth wax
ozocerite
71
Other name of Yamatake system (process automation - DCS)
Azbil
72
What is used in ultrasonic flow meters
doppler
73
Which of the following is not dependent on temperature and wavelength?
a. black body
b. gray body
c. plasma
d. moving body
gray body (not sure e2)
74
Electronic noise inside an electric conductor which is independent of applied voltage
a. shot noise
b. Johnson noise
c. white noise
Johnson noise
75
Who is the person behind carbon dating method?
willard libby
76
Which do float?
balsa wood, ethylene glycol, table salt and ethanol
balsa wood
77
Which of the following decrease in entropy
melting of ice
78
Fundamental class of reactions in which an electron rich nucleophile selectively bonds with or attacks the positive or partially positive charge of an atom or a group of atoms to replace a leaving group.
Nucleophilic substitution
79
What is the solid part of the earth’s crust?
a. hydrosphere
b. lithosphere
c. troposphere
d. atmosphere
b.lithosphere
80
One way of obtaining IR spectra of solids is
Nojul Mull process
81
What is the sign convention of enthalpy during endothermic reaction?
positive
82
The position and the velocity of an object (particles, atom) cannot both be measured exactly, at the same time, even in theory.
Heisenberg Uncertainty Principle
83
Another name of Taurine.
Aminoethanesulfonate or
2-aminoethanesulfonic acid
84
Example of pseudo plastic fluid
a. apple sauce
b. rubber latex
c. tap water
d. sewage sludge
a. apple sauce
85
Product of distillation of coal tar
phenol
86
pH or Normal rain and acid rain
Normal rain (5.0-5.5)
Acid rain (4.0)
87
pH of blood
7.35-7.45
88
Who discovered deuterium?
Harold C. Urey
89
If Pb and Al are both dipped in boiling water and are then dipped in water at room temperature, which will have the higher temperature?
Pb or Lead because it has the highest temperature increase in the metal with the lowest specific heat capacity.
90
Most abundant metal in human body.
Calcium
91
Given CO2 + H2O -> C6H12O6 + O2, C6H12O6 + O2 -> H2O + CO2, what are the coefficients? Which is respiration and which is photosynthesis?
Photosynthesis–C6H12O6 + 6CO2 -> 6H2O + 6CO2 Respiration–6CO2 +6H2O -> C6H12O6 + 6O2
92
The chemical symbol for Tungsten is derived from the Latin Word?
wolfranium
93
What will happen to temperature in a throttling process from high to low pressure?
Increase then drop
94
What is the most polar and least polar of the following functional groups: R-OH, R-NH3, R-COOH, C triple bond C and C- C.
Most Polar: R-COOH, Least Polar: R-OH
95
simplest type of control; on-off action
Bang-bang
96
Elements under Group 1A
Has 1 electron on its outer most energy level
97
Produces electricity aside from its main product (power plant
choices: oil refinery, sugar industry, biomass industry
oil refinery (?)
98
Non-polar molecules are soluble in _______solvents
(non-polar solvents)
99
Ionic compounds are soluble in
polar solvents
100
Good connection between solute and solvent
soluble
101
Two substances with similar ____ are likely to be soluble with each other
intermolecular force
102
Dissolved solute comes out of a solution and forms crystals
crystallization
103
Two substances are completely dissolved into each other
miscible
104
An ion or molecule is surrounded by solvent molecules
solvation
105
A specific case of solvation where solvent molecules are water
hydration
106
Factors that changes states?
increase temp and increase pressure
107
Measure of liquids resistance to flow?
viscosity
108
What type of bond has a high viscosity?
hydrogen viscosity
109
classification of aspirin
compound
110
Percentage of water in blood
83 to 85%
111
Mass ratio of Earth to Moon
81
112
Percent Argon in Air
0.99%
113
Chemical basis of Breathalyzer ( used to test if drivers are drunk)
Chemical basis is redox reaction. A sample of the driver’s breath is drawn into the breathalyzer, where it is treated with an acidic solution of potassium dichromate. The alcohol in the breath is converted to acetic acid
114
What chemical killed Napoleon?
High level of Arsenic
115
Procedure that detects Arsenic
Marsh test
116
Second most abundant cation in seawater
Magnesium. Sodium is the most abundant
117
Traces of this element gives turquoise its distinctive blue color
Copper
118
How many separate patents did Thomas Edison file?
1093
119
Strongest known magnet in the universe
neutron star
120
Hottest planet in the solar system
Venus
121
How much salt does the average body contain?
250 grams
122
Hardest substance in the human body
Tooth enamel
123
Longest type of cell in the body
Nerve cell or neuron
124
Who has more hair follicles? Blondes or brunettes?
blondes
125
What crystalline formation are on cave ceilings?
stalactites
126
In this model, the atom is made up of negative electrons that float in a sphere of positive charge
Thomson’s Plum Pudding Model
127
This model was a result of the well known gold foil experiment
Rutherford’s nuclear model
128
Other name for H-2
Deuterium
129
Energy required to separate atom into electrons, neutrons and protons
Binding Energy
130
It is the total mads of individual particles minus mass of the atom as a whole
mass defect
131
Most abundant elements in the Earth’s core
Fe and Ni
132
Magic Numbers
2,8,20,28,50,82,114,126
133
He generalized Balmer’s work and developed an empirical formula that predicted all of hydrogen’s emission lines incluiding those outside the visible range
Rydberg
134
During a flame test, Lithium produces what color
Red
135
During a flame test, what color do these elements produce?
Litium, strontium, radium, rubidium calcium, sodium, iron, potassium, cesium, selenium
A. Lithium - Red
B. Strontium-Red
C.Radium-Red
D.Rubidium-Red
E. Calcium- Brick red
F. Sodium and Iron-Yellow
G. Potassium-Purple
H. Cesium, selenium-Blue
136
Which is larger? Iodine atom or Iodide?
Iodide
137
Pnictogens have three valence electrons, true or false
False
138
What is the second most abundant element in the earth’s crust?
Si
139
What is the third most abundant substance in dry air?
Argon
140
What is the formal charge of a chloring atom in carbon tetrachloride?
0
141
A 35% aqueous solution of saltpeter at 30C is _____
a. unsaturated
b. saturated
c. supersaturated
d. cannot be determined
Supersaturated
142
Which of the ff. molecular geometry is always polar?
a. trigonal bypiramidal
b. square planar
c. trigonal planar
d. see saw
trigonal planer (?)
143
Iodine vapor forms iodine crystals when it touches a cold surface. What is the reverse of the process being described?
Sublimation
144
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