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DAY 1 > 3-1 > Flashcards

3-1 Flashcards

1
Q

Distance from the earth to the most remote
known normal galaxies is calculated to be:

A

9x10^25 m

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2
Q

Mean distance from the equator to the north
pole is:

A

ANSWER: 1x10^7 m

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3
Q

Determine the volume in mL of 1mol of pure
ethyl alcohol.

A

58 mL

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4
Q

Iodine vapor forms iodine crystals when it
touches a cold surface. What is the reverse
of the process being described?

A

sublimation

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5
Q

What is the formula of the ionic compound that
is forced between the following ions: lithium and
chloride ions; lithium and oxide ions; lithium
and nitride ions?

A

LiCl, Li2O, Li3N

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6
Q

From which plant is capsaicin extracted?

A

Capsicum

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7
Q

What is the chemical formula of aspirin?

A

. C9H8O4

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8
Q

Which of the following formula is red lead?

A

Pb3O4

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9
Q

What is the common name of this compound
C6H5OCH3
?

A

. Anisole

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10
Q

What is the formula of melamine?

A

C3H6N6

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11
Q

Give the technical names of Sc3+, Ti2+ and Sr2+

A

Scandium (III) ion; Titanium (II) ion; Strontium (II)
ion

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12
Q

Determine the gram molecular weights and equivalent
weights of the following: MgCO3; CO2; K2HPO4 and
NaNO3. Make the appropriate assumptions

A

84.4/42.3; 44.2/22.3; 175/88; 85.2/85.3

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13
Q

What is the molecular weight in amu/g/mol
of 11-tetradecenyl acetate?
(amu C16H30O2)

A

254 (appears 25.4)

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14
Q

What is the chemical formula of Alar?

A

C6H12N2O3

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15
Q

Author of Octet Rule

A

Gilbert Lewis

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16
Q

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

A

Linus Pauling

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17
Q

Which compound is formed by the reaction
of malonic acid and urea with a catalyst, as
discovered by Adolf von Baeyer

A

Barbituric Acid

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18
Q

What was the method used by Friedrich Wöhler
to break the vital force theory in nature?

A

Heating ammonium cyanate to form urea

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19
Q

Who discovered EDTA?

A

Ferdinand Munz

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20
Q

The Nobel Prize for radioactivity discovery
was shared between Curie and Roentgen.
Who coined the word “Serendipity” in 1754?

A

Horace Walpole

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21
Q

Who invented vulcanized rubber?

A

Charles Goodyear

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22
Q

Who discovered the structure of benzene?

A

Friedrich August Kekule

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23
Q

Who is the father of Quantum Theory?

A

Max Planck

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24
Q

Who discovered x-ray?

A

Wilhelm Conrad Roentgen

25
Q

What was Melvin Calvin was known for his
study of?

A

photosynthesis

26
Q

What discovered Deuterium?

A

Harold C. Urey

27
Q

Father of nuclear chemistry and discovered
proof of nuclear fission.

A

Otto Hann

28
Q

Who discovered carbon dating?

A

Willard Libby

29
Q

In an experiment it was found that the total charge
on an oil drop was 5.93x10-18 C. How many
negative charges does the drop contain?

A

37

30
Q

Define the relationship between the number of electrons in the valence shell and the
number of covalent
bonds it forms:

A

C = 4 electrons, 4 bonds; N = 5 electrons, 3 bonds; O = 6 electrons, 2 bonds; H = 2
electrons, 2 bonds

31
Q

Determine which of the following will float or
sink in water: balsa wood, ethylene glycol,
table salt, ethanol

A

float, sink, sink, float

32
Q

Which of the following symbols
provides more information about
the atom: 23Na or 11Na?

A

23Na

33
Q

What other particle is formed in the fusion of
two protons to yield deuterium?

A

neutron

34
Q

Process of breaking down a large isotope
into smaller isotopes.

A

nuclear fission

35
Q

Determine the number of days it will take for one
milligram of rubidium to decay to 0.6 mg.

A

63

36
Q

Polymer used in bullet proof vest

A

: Linear Polyethylene

37
Q

Draw the condensed and skeletal structures
of diethyl ether which is used by most
doctors and hospitals as an anesthetic
during operations.

A

CH3CH2OCH2CH3

38
Q

It is an organic reaction that converts an
alcohol into an alkyl chlorine using
triphenylphosphine and carbon tetrachloride.

A

Appel Reaction

39
Q

What compound can be used to convert alcohol or
a phenol into an ester?

A

Acetic anhydride: CH3-C-O-COCH3

40
Q

What is the Nujol Mull in organic chemical reactions?

A

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

41
Q

Explain the differences in structure between a saturated hydrocarbon
from an unsaturated hydrocarbon.

A

A saturated hydrocarbons contains only carbon-carbon single bonds,
while an unsaturated hydrocarbon contains one or more carbon-carbon
double or triple bonds.

42
Q

Determine whether TRUE or FALSE about the
constitutional isomer.
A.) They have the same molecular formula
B.) They have the same molecular weight
C.) They have the same connectivity to their atoms
D.) They have the same physical properties

A

. T; T; F; F

43
Q

Which of the following is a primary application of
ethylene?

A

Use as a plant hormone for ripening of fruits

44
Q

What structural characteristics do citric acid and
malic acid have in common?

A

They are both hydroxy acids

45
Q
A
46
Q

Adrenaline is produced in the body through a biochemical
nucleophilic substitution reaction where:

A

The reactant neocleophile atom replaces the leaving group in
the nucleophylic substitution reaction

47
Q

What organic product is formed when
C6H5CH2COOH is treated with CH3OH +
H2SO4 (catalyst)?

A

C6H5CH2CO2CH3 + H20

48
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

49
Q

These compounds are formed by
the reaction of acids with alcohols.

A

Esters

50
Q

Fatty acid such as lauric acid and palmitic acid and oleic acid are long
unbranched carboxylic acids consisting of 12 to 20 carbon atoms.
Which type of fatty acid should people avoid ingesting, saturated or
unsaturated and why?

A

Saturated, because the risk of cardiovascular disease is increased

51
Q

It is the major component of lecithin.

A

Phosphatidylcholine

52
Q

Taurine, a Beta amino acid belongs to the
acidic group of:

A

. –SO2OH

53
Q

In the study of fats and lipids, determine which of the
two triglycerides has a higher melting point?
Substance A containing only lauric acid and glycerol,
or substance B-containing only stearic acid and
glycerol?

A

B

54
Q

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?

A

gluconeogenesis

55
Q

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

A

III < II < I

56
Q

Which of the acid combination is the
dominant composition of acid rain?

A

nitric acid and sulfuric acid

57
Q

Radioactive solid nuclear wastes are disposed
off by

A

underground burial in concrete containers

58
Q
A

DAY 1 (2 decks)

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