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CHE BOARDS > Day 1 > Flashcards

Day 1 Flashcards

Reviewer

1
Q

Breakdown of Large Isotopes into smaller ones

A

Nuclear Fission

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2
Q

Formula of Red Lead

A

Pb3O4

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3
Q

Can Oxygen be Synthesized from Nitrogen?

A

Only in very high temperature (e.i. Stars)

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4
Q

Author of Octet Rule

A

Gilbert Lewis

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5
Q

Effect of Alpha, Beta, and Gamma particles to mass number

A

(4,0,0)

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6
Q

from Solid Phase to Gas Phase process

A

Sublimation

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7
Q

Notation on alkane containing Cl

A

Chloro

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8
Q 
Dodecane:
I.Soluble in Water?
II.Soluble in Hexane?
III.Combustible?
IV. State in room temp. and atmospheric pressure?
V.Denser than Water?
A 
Dodecane:
I.No
II.Yes
III.Yes
IV. Liquid
V.No
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9
Q

Characteristic of elements under Group 1A

A

has 1 electron on the outer most energy level

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10
Q

Inside a tank, when N2 is dissolved in water, the amount of N2 will ______

A

Remain the same

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11
Q

I.Description of Primary and Secondary Cells

II.Example of Primary and Secondary Cells

A

I.Primary cells can be recharged while secondary ones cannot.
II.Ni-Cd and Dry Cell

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12
Q

Adolf Baeyer’s contribution:

Malonic Acid + Urea

A

Barbituric Acid

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13
Q

Where is the Ozone Layer located?

A

Stratosphere

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14
Q

Composition of Acid Rain

A

Nitric and Sulfuric Acid

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15
Q

Process on how to differentiate alkane, alkene, and alkyne

A

Reaction with Br2

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16
Q

The melting point of saturated fatty acids if -CH2- is increased will ______

A

Increase

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17
Q

Particle with the same mass as Neutron

A

Proton

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18
Q

Polymer in Bulletproof Vests

A

linear polyethylene

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19
Q

Other term for earth wax

A

Ozokerite

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20
Q

Relationship in the arrangement of the compounds below:

  1. Heptachlor
  2. Dieldrum
  3. DDT/Cr
  4. Arsenic
A

Decreasing Toxicity

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21
Q

Citric Acid and Malic Acid are both:

  1. _____
  2. _____
  3. _____
A
  1. Alpha-hydroxy Acids (AHA) , skin care
  2. found in metabolic process of humans
  3. used in alcoholic drinks
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22
Q

Who discovered Radioactivity?

A

Henri Bequerel

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23
Q

Definition of Radioactivity

A

emission of ionizing radiation caused by disintegration of atomic nuclei

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24
Q

Who discovered Vulcanized Rubber?

A

Charles Goodyear

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25
Q

Use of EDTA

A

Bind metal ions in Chelation therapy. Treating Hg and Pb poisoning

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26
Q

Sound travels faster during the day or night?

A

night

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27
Q

Number of C atoms in Olvanil?

A

26 (C26H43NO3)

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28
Q

Who discovered Xrays?

A

Wilhelm Conrad Roentgen

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29
Q

Formula for 11-Tetradecenyl Acetate

A

C16H30O2

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30
Q

Primary use of Ethylene

A

Ripening of Fruits

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31
Q

Where is the enzyme Capsaicin found?

A

capsicum

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32
Q

What is Ozonolysis?

A

alkenes, alkynes, and azo compounds are cleaved with ozone

33
Q

Other name for Bulk Temperature

A

Mixing-Cup temperature

34
Q

Used in removal of fine particles in hot airstream in cement production

A

Venturi Scrubber

35
Q

Method by Wohler to break the Vital Force Theory

A

Formation of Urea by heating NH4Cl + AgCN

36
Q

Relationship of the arrangement below:
Oleic
Palmitic
Stearic

A

increasing melting point

37
Q

Range of melting point of fatty acids

A

Saturated: 100 to 110 degC
Unsaturated: 70 to 85 degC

38
Q

The pH of Carbonized Drinks when exposed to atmospheric conditions will ______

A

Decrease

39
Q

Enthalpy content of real gases when throttled at constant temperature will _____

A

remain constant

40
Q

Person behind Carbon Dating

A

Willard Libby

41
Q

Arrange in increasing entropy:

Liquid, Solid, Gas

A

Solid
Liquid
Gas

42
Q

Solid Part of the Earth

A

Lithosphere

43
Q

Synthetic Dye

A

Carotenoid (tetratenoids)

44
Q

Define Henry’s Law

A

At a constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.

45
Q

Nojul Mull Process?

A

a way of obtaining IR spectra of solids

46
Q

What is the sign convention of enthalpy during an endothermic process?

A

positive

47
Q

The position and the velocity of an object (particles, atom) cannot both be measured exactly, at the same time, even in theory.

A

Heisenberg Uncertainty Principle

48
Q

Other name for Taurine

A

2-Aminoethylsulfonic Acid, 2-Aminoethane Sulfonic Acid

49
Q

Who discovered Zeolite?

A

Cronstedt

50
Q

Kerogen can be found in the sedimentary rocks called _____

A

Oil Shale

51
Q

Element used in standard 1kg measurement

A

Iridium

52
Q

1st Law of Thermodynamics

A

Conservation of Energy

U=Q+W

53
Q

2nd Law of Thermodynamics

A

The total entropy of an isolated system can never decrease over time.

54
Q

3rd Law of Thermodynamics

A

The entropy of a system approaches a constant value as its temperature approaches absolute zero.

55
Q

Debye-Huckel Principle

A

Used to calculated the Ionic strength and activity coefficient of ions in a solution.
Assumptions:
1.Electrolytes completely dissociate into ions in solution.
2.Solutions of Electrolytes are very dilute, on the order of 0.01 M.
3.Each ion is surrounded by ions of the opposite charge, on average.

56
Q

Lee-Kesler Method is only applicable in _____

A

Non-polar and slightly polar compounds

57
Q

Theoretical Oxygen demand of glutamic acid

A

212

58
Q

Log mean temperature difference is used to _______

A

determine the temperature driving force for heat transfer in flow systems, most notably in heat exchangers.

59
Q

How many ATP are produced in glycolysis?

A

2

60
Q

Define a Fatty Acid

A 
Carboxylic Acid that contains 12 - 20 Carbon atoms
 Note:
Lauric - coconut
Palmitic - palm
Linoleic - palm
Stearic - lard
61
Q

Hess’s Law states that ____

A

regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes.

62
Q

Chymotrypsin preferentially cleaves peptide amide bonds of ____ ____ and _____

A

tyrosine, tryptophan, and phenylalanine

63
Q

What is a Plasmid?

A

Circular DNA strand in the Cytoplasm

64
Q

1st noted user of the word “Serendipity”

A

Horace Walpole

65
Q

Component of sunblock that helps reflect light

A

Zinc oxide

66
Q

What is Biological Transmutation?

A
  • changing one element into another. It occurs at low temperature and pressure, and is not harmful to living tissue. In fact, it goes on in living tissue only.
  • Proposed by Corentin Louis Kervran
67
Q

Temperature in the moon?

A

Day: 127 degC
Night: -173 degC

68
Q

Is it possible for an endothermic reaction to have an activation energy of 0?

A

No

69
Q

Most Oxidized form of nitrogen

A

nitrates

70
Q

Use of the radioactive isotope Cobalt

A

treatment of cancer

71
Q

Chemical name of Lecithin

A 
Lecithins 
Granulestin 
Ovovitellin 
Phospholutein 
Gliddex 
Kelecin

(marami pa, d ko na tanda alin lang nasa choices)

72
Q

Group of lipids that Ceramide belongs to

A

Wax Lipids

73
Q

How many double bonds are there in the following compounds found in Cetronella oil:

  1. Citronellal
  2. Citronellol
  3. Geraniol
A

How many double bonds are there in the following compounds found in Cetronella oil:

  1. 2
  2. 1
  3. 2
74
Q

What are Constitutional Isomers?

A

Same molecular formula, different connectivity

75
Q

Ratio of mass of Sun to Earth

A

330,000

76
Q

What is a heterocyclic compound?

A

A cyclic compound that has atoms of at least two different elements as members of its ring.
-Example is Furan

77
Q

What is the Zeroth Law of Thermodynamics?

A

If two bodies are each in thermal equilibrium with some third body, then they are also in equilibrium with each other.

78
Q

A. Ratio of mass of Moon to Earth.

B. Ratio of gravity of Moon to Earth.

A

A. about 0.0123

B. about 1/6

CHE BOARDS (2 decks)

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