Coal is not a pure chemical compound,but its elemental composition can be approximated by the formula C135H96NO9S.What is the approximate percentage by mass of sulfur in coal?

A) 0.413% B) 1.68% C) 3.11% D) 42.8% A) 0.413% B) 1.68% C) 3.11% D) 42.8%

Exam 6: Neutralizing the Threat of Acid Rain

Scrubbers installed on coal fired power plants remove acidic emissions by the following reaction: CaCO₃ + H₂SO₄ → H₂O + CaSO₄ + CO₂If a plant burns 2.4 million metric tons of coal (1 t = 1000 kg)containing 1.3% sulfur,how much limestone (CaCO₃)will be consumed neutralizing the resulting acid? Assume that all of the sulfur is converted to sulfuric acid and that the acid is completely converted to calcium sulfate.

(Multiple Choice)

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Question 41

Most of the sulfur in coal originates from

(Multiple Choice)

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Question 42

Scientists predict that shells of some ocean creatures will start to dissolve after how many more years of ocean acidification?

(Multiple Choice)

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Question 43

Which statement(s)concerning SO_x and NO_x emissions are true? I.Automobiles produce NO_x but very little SO_x. II.Power plants produce only SO_x. III.Diesel powered vehicles produce only SO_x. IV.The high concentration of nitrogen compounds in gasoline accounts for the formation of NO_x by automobiles and trucks.

(Multiple Choice)

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Question 44

Which substance has the highest pH?

(Multiple Choice)

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Question 45

Why are automobiles a contributor to acid rain when there is no sulfur in gasoline to make SO_x?

(Multiple Choice)

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Question 46

Calculate the percentage decease in NO_x emissions after clean coal technology was installed at the Milliken power station.

(Multiple Choice)

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Question 47

Why have efforts to reduce sulfur oxide emissions met with greater success than those directed at nitrogen oxide emissions reductions?

(Multiple Choice)

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Question 48

What atmospheric component is responsible for the natural acidity of rain?

(Multiple Choice)

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Question 49

Carbon dioxide is the acid anhydride of which compound?

(Multiple Choice)

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Question 50

Every increase of one pH unit indicates

(Multiple Choice)

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Question 51

Which of the following compounds contributes to "dry" acid deposition?

(Multiple Choice)

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Question 52

Which chemical equation shows the dissociation of magnesium hydroxide?

(Multiple Choice)

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Question 53

A substance that is hygroscopic

(Multiple Choice)

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Question 54

Which reactive nitrogen compound is produced using the Haber-Bosch process?

(Multiple Choice)

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Question 55

Predict the products of the chemical equation: 3 LiOH + H₃PO₄ →

(Multiple Choice)

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Question 56

Evaluate the ratio M_H+ (pH 3)/ M_H+ (pH 7).

(Multiple Choice)

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Question 57

The acid neutralizing capacity of a lake or stream most often derives from the presence of _______ in the surrounding soil or rock.

(Multiple Choice)

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Question 58

Which anthropogenic pollutants are implicated in the formation of most acidic precipitation?

(Multiple Choice)

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Question 59

Coal is not a pure chemical compound,but its elemental composition can be approximated by the formula C₁₃₅H₉₆NO₉S.What is the approximate percentage by mass of sulfur in coal?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 68

Most of the sulfur in coal originates from

Scientists predict that shells of some ocean creatures will start to dissolve after how many more years of ocean acidification?

Which substance has the highest pH?

Why are automobiles a contributor to acid rain when there is no sulfur in gasoline to make SO_x?

Calculate the percentage decease in NO_x emissions after clean coal technology was installed at the Milliken power station.

Why have efforts to reduce sulfur oxide emissions met with greater success than those directed at nitrogen oxide emissions reductions?

What atmospheric component is responsible for the natural acidity of rain?

Carbon dioxide is the acid anhydride of which compound?

Every increase of one pH unit indicates

Which of the following compounds contributes to "dry" acid deposition?

Which chemical equation shows the dissociation of magnesium hydroxide?

A substance that is hygroscopic

Which reactive nitrogen compound is produced using the Haber-Bosch process?

Predict the products of the chemical equation: 3 LiOH + H₃PO₄ →

Evaluate the ratio M_H+ (pH 3)/ M_H+ (pH 7).

The acid neutralizing capacity of a lake or stream most often derives from the presence of _______ in the surrounding soil or rock.

Which anthropogenic pollutants are implicated in the formation of most acidic precipitation?

Coal is not a pure chemical compound,but its elemental composition can be approximated by the formula C₁₃₅H₉₆NO₉S.What is the approximate percentage by mass of sulfur in coal?

The Air We Breathe

Protecting the Ozone Layer

The Chemistry of Global Climate Change

Energy From Combustion

Water for Life

The Fires of Nuclear Fission

Energy From Electron Transfer

The World of Polymers and Plastics

Manipulating Molecules and Designing Drugs

Nutrition: Food for Thought

Genetic Engineering and the Molecules of Life

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Exam 6: Neutralizing the Threat of Acid Rain

Most of the sulfur in coal originates from

Scientists predict that shells of some ocean creatures will start to dissolve after how many more years of ocean acidification?

Which substance has the highest pH?

Why are automobiles a contributor to acid rain when there is no sulfur in gasoline to make SOx?

Calculate the percentage decease in NOx emissions after clean coal technology was installed at the Milliken power station.

Why have efforts to reduce sulfur oxide emissions met with greater success than those directed at nitrogen oxide emissions reductions?

What atmospheric component is responsible for the natural acidity of rain?

Carbon dioxide is the acid anhydride of which compound?

Every increase of one pH unit indicates

Which of the following compounds contributes to "dry" acid deposition?

Which chemical equation shows the dissociation of magnesium hydroxide?

A substance that is hygroscopic

Which reactive nitrogen compound is produced using the Haber-Bosch process?

Predict the products of the chemical equation: 3 LiOH + H3PO4 →

Evaluate the ratio MH+ (pH 3)/ MH+ (pH 7).

The acid neutralizing capacity of a lake or stream most often derives from the presence of _______ in the surrounding soil or rock.

Which anthropogenic pollutants are implicated in the formation of most acidic precipitation?

Coal is not a pure chemical compound,but its elemental composition can be approximated by the formula C135H96NO9S.What is the approximate percentage by mass of sulfur in coal?

The Air We Breathe

Protecting the Ozone Layer

The Chemistry of Global Climate Change

Energy From Combustion

Water for Life

The Fires of Nuclear Fission

Energy From Electron Transfer

The World of Polymers and Plastics

Manipulating Molecules and Designing Drugs

Nutrition: Food for Thought

Genetic Engineering and the Molecules of Life

Filters

Why are automobiles a contributor to acid rain when there is no sulfur in gasoline to make SO_x?

Calculate the percentage decease in NO_x emissions after clean coal technology was installed at the Milliken power station.

Predict the products of the chemical equation: 3 LiOH + H₃PO₄ →

Evaluate the ratio M_H+ (pH 3)/ M_H+ (pH 7).

Coal is not a pure chemical compound,but its elemental composition can be approximated by the formula C₁₃₅H₉₆NO₉S.What is the approximate percentage by mass of sulfur in coal?