C. Naphthalene, C1,Hg, the chemical used in mothballs, can be isolated from the naphtha fraction of petroleum oil through distillation. Solid mothballs work by filling a closet with naphthalene vapor that is toxic to moths. Over time naphthalene goes directly from a solid to a gaseous phase, and the balls shrink and disappear. On your answer sheet, draw 10 particles of naphthalene (as circles) to depict how particles would appear after the phase change.

Chemistry
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Chapter1: Chemical Foundations
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6. Petroleum extracted from deep reservoirs within the earth is a mixture of different
hydrocarbons varying in chemical properties. Fractional distillation of petroleum oil is used to
separate out these different components. This table summarizes a few of these components:
Fraction
Approximate boiling point
Uses of the fraction
range
Gasoline
25-75°C
Car fuel
Diesel/ Heating Oil
Fuel used for heating and in
250-350°C
some cars, trucks, and trains
Naphtha
75-190°C
Source of organic chemicals
Kerosene
190-200°C
Used in camp lights, small
heating units, and as aircraft
jet fuel
Transcribed Image Text:6. Petroleum extracted from deep reservoirs within the earth is a mixture of different hydrocarbons varying in chemical properties. Fractional distillation of petroleum oil is used to separate out these different components. This table summarizes a few of these components: Fraction Approximate boiling point Uses of the fraction range Gasoline 25-75°C Car fuel Diesel/ Heating Oil Fuel used for heating and in 250-350°C some cars, trucks, and trains Naphtha 75-190°C Source of organic chemicals Kerosene 190-200°C Used in camp lights, small heating units, and as aircraft jet fuel
C. Naphthalene, C1,Hg, the chemical used in mothballs, can be isolated from the naphtha
fraction of petroleum oil through distillation. Solid mothballs work by filling a closet
with naphthalene vapor that is toxic to moths. Over time naphthalene goes directly
from a solid to a gaseous phase, and the balls shrink and disappear. On your answer
sheet, draw 10 particles of naphthalene (as circles) to depict how particles would appear
after the phase change.
Transcribed Image Text:C. Naphthalene, C1,Hg, the chemical used in mothballs, can be isolated from the naphtha fraction of petroleum oil through distillation. Solid mothballs work by filling a closet with naphthalene vapor that is toxic to moths. Over time naphthalene goes directly from a solid to a gaseous phase, and the balls shrink and disappear. On your answer sheet, draw 10 particles of naphthalene (as circles) to depict how particles would appear after the phase change.
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