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Petroleum - What is it? Flashcards | StudBud
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Petroleum - What is it?
Petroleum - What is it?
30 terms
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StudBud Administration
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157 plays
chemistry in the community, science, chemistry, alkanes
Flashcards
30 cards
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Questions
30
Answers
1
Carbon footprint is measured in units of
inches of CO2
liters of CO2
feet of CO2
kilograms or tons of CO2
2
What is the formula for an alkane with 12 carbons?
C12H26
CH12
C12H12
C12H24
3
Petroleum is separated into its components for use as fuel and other products using
a centrifuge
chromatography
precipitation
fractional distillation
4
Which sample of petroleum has
high viscosity
?
water (0 carbons)
propanol (3 carbons per molecule)
Mineral oil, (12-20 carbon atoms per molecule)
heptane (7 carbons per molecule)
5
Structural isomers have the same
physical properties
chemical properties
molecular geometry
molecular formula
6
Petroleum reserves are uniformly distributed throughout the world (true or false)
false
true
7
Isomers are different compounds that have
same molecular formula, different structural formula
same structural formula, different physical properties
same empirical formula, different molecular formula
same arrangement, different element
8
The process used to separate two or more liquids based on differing boiling points is
filtration
distillation
crystallization
precipitation
9
The saturated hydrocarbon with seven carbons is called (each C has 4 single covalent bonds)
nonane
heptane
propane
hexane
10
How many carbon atoms per molecule are found in gasoline fraction of petroleum?
13-18
18+
1-4
5-12
11
What does the root "but-" stand for?
4
2
8
6
12
This region has the largest consumption of petroleum compared to its population
Eurasia (Russia)
North America
Europe
Asia
13
As the number of C atoms in a molecule increase, the boiling points...
decreases
remains the same
vary with each hydrocarbon
increases
14
Which compound has the lowest boiling point?
C3H8
C7H14
C5H12
CH4
15
At what level in fractionating tower is the fraction with the highest boiling point?
bottom
top
middle
16
This region has the largest petroleum reserves compared to its population
Asia
South America
North America
Middle East
17
In a fractionating tower, the thick liquids that do not vaporize are called
waste gases
residues (bottoms)
gasoline
heavy distillates
18
Intermolecular forces are strongest in petroleum's
light distillates
residues (bottoms)
heavy distillates
gaseous fraction
19
This is an isomer of...
butane
propane
ethane
pentane
20
An unbranched alkane containing seven carbons is called
heptane
hexane
butane
propane
21
What does the isomer name 3-methylhexane tell you?
there are 3 branches off of the 6th carbon in the chain
the parent chain has 3 carbons
there is a branch off of the 3rd carbon in the chain
there is a 3 Carbon branch off of one of the carbons
22
Alkanes are hydrocarbons with one or more ___ carbon-carbon bond.
double
triple
quadruple
single
23
This is the structural formula for
propane
pentane
ethane
butane
24
Which alkane has a molar mass of 16 g/mol?
CH4
C2H6
C3H8
C4H10
25
The energy stored in petroleum is from
sunlight
atmosphere
microorganisms
meteors
26
How many alkyl groups does 3-ethyl-2,4-dimethyloctane have?
3
6
9
2
27
Hydrocarbons are compounds that contain
oxygen & carbon atoms
carbon & hydrogen atoms
carbon & nitrogen atoms
oxygen & hydrogen atoms
28
Water and 2-propanol can be separated by distillation due to their differences in
colors
specific gravity
molecular formulas
boiling points
29
How many isomers does pentane have?
3
6
5
4
30
Where in the fractionating tower is the temperature the lowest?
Middle
Same throughout
Bottom
Top
