Question 1

Which substance has the highest pH?

Accepted Answer

This would be the most basic choice.

Question 2

Which reaction most accurately represents the dissociation of nitrous acid (HNO₂)in water?

Accepted Answer

Remember to keep your nitrite ion as one thing.

Question 3

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

Accepted Answer

These make sulfuric and nitric acids.

Question 4

Which concentration is consistent with a basic solution?

Accepted Answer

Bases have high OH- concentrations and/or low H+ concentrations.

Question 5

The Clean Air Act Amendments of 1990 authorize the assignment of permits to corporations allowing a predetermined level of sulfur dioxide emissions.Permit holders that keep emissions below the permit level may

Accepted Answer

This is a sort of "cap and trade" arrangement.

Question 6

When dissolved in water,hydrogen bromide (HBr)forms hydrobromic acid.Determine the hydroxide ion concentration in a 4,500 mL solution containing 3.78 g hydrogen bromide;K_w = 1.00 × 10¯¹⁴.

Accepted Answer

Hydrogen bromide is a strong acid, so it dissociates completely in water. Calculate [H⁺] using the moles of HBr and the volume of the solution, then use Kw = [H⁺][OH¯] to find [OH¯].

Question 7

A proton released by an acid in aqueous solution quickly reacts with water to form a hydronium ion.What product is formed when a proton reacts with ammonia (NH₃)?

Accepted Answer

Just add the hydrogen and its charge to the ammonia molecule.

Question 8

Calculate the pH of a solution prepared by dissolving 1.2 g of potassium hydroxide (KOH)in 1,250 mL of water.

Accepted Answer

Find the hydroxide ion concentration,then the pOH then take 14 - pOH = pH

Question 9

Which chemical equation shows the dissociation of magnesium hydroxide?

Accepted Answer

Remember that you must balance the equation and have proper charges on the ions.

Question 10

Which chemical equation shows the dissociation of 2 protons from trihydrogen phosphate (phosphoric acid)?

Accepted Answer

A proton is an H^+.

Question 11

Sulfur oxides have been implicated as important contributors to the problem of acid rain.What is the principal anthropogenic source of these compounds?

Accepted Answer

Remember that anthropogenic means caused by humans.

Question 12

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

Accepted Answer

This makes carbonic acid.

Question 13

The pH of lemon juice is approximately 2.40.At this pH,the hydronium ion concentration is closest to which concentration?

Accepted Answer

pH is -log of the hydronium ion concentration.

Question 14

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

Accepted Answer

Remember that pH = -log[H⁺]

Question 15

The formation of nitric oxide (NO,a precursor to nitric acid)from oxygen and nitrogen is ordinarily a very slow process.What accounts for its more rapid formation in automobile exhaust?

Accepted Answer

Think about how hot an internal combustion engine may be.

Question 16

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?

Accepted Answer

Remember to take the total mass of carbon divided by the total mass of the molecule.

Question 17

Coal switching refers to the practice of

Accepted Answer

This is just about using better coal.

Question 18

The hydronium ion concentration in a solution with pH 10 is __________ than the hydronium ion concentration in a solution with pH 13.

Accepted Answer

This is three powers of ten different.

Question 19

Predict the products of this reaction: KOH + HNO₃ →

Accepted Answer

Acid and base make a salt and water.

Question 20

Calculate the amount of sulfur dioxide produced annually by a power plant that burns 7.5 million metric tons (t)of coal over a year.Assume that the coal is 2.4% sulfur by mass.1 metric ton (t)= 1000 kg.

Accepted Answer

Each sulfur combines with two oxygens doubling the mass of the sulfur in the coal.

Quiz 6: Neutralizing the Threat of Acid Rain

Which substance has the highest pH?

Which reaction most accurately represents the dissociation of nitrous acid (HNO₂) in water?

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

Which concentration is consistent with a basic solution?

The Clean Air Act Amendments of 1990 authorize the assignment of permits to corporations allowing a predetermined level of sulfur dioxide emissions.Permit holders that keep emissions below the permit level may

When dissolved in water,hydrogen bromide (HBr) forms hydrobromic acid.Determine the hydroxide ion concentration in a 4,500 mL solution containing 3.78 g hydrogen bromide;K_w = 1.00 × 10¯¹⁴.

A proton released by an acid in aqueous solution quickly reacts with water to form a hydronium ion.What product is formed when a proton reacts with ammonia (NH₃) ?

Calculate the pH of a solution prepared by dissolving 1.2 g of potassium hydroxide (KOH) in 1,250 mL of water.

Which chemical equation shows the dissociation of magnesium hydroxide?

Which chemical equation shows the dissociation of 2 protons from trihydrogen phosphate (phosphoric acid) ?

Sulfur oxides have been implicated as important contributors to the problem of acid rain.What is the principal anthropogenic source of these compounds?

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

The pH of lemon juice is approximately 2.40.At this pH,the hydronium ion concentration is closest to which concentration?

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

The formation of nitric oxide (NO,a precursor to nitric acid) from oxygen and nitrogen is ordinarily a very slow process.What accounts for its more rapid formation in automobile exhaust?

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?

Coal switching refers to the practice of

The hydronium ion concentration in a solution with pH 10 is __________ than the hydronium ion concentration in a solution with pH 13.

Predict the products of this reaction: KOH + HNO₃ →

Calculate the amount of sulfur dioxide produced annually by a power plant that burns 7.5 million metric tons (t) of coal over a year.Assume that the coal is 2.4% sulfur by mass.1 metric ton (t) = 1000 kg.

Quiz 6: Neutralizing the Threat of Acid Rain

Which substance has the highest pH?

Which reaction most accurately represents the dissociation of nitrous acid (HNO2) in water?

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

Which concentration is consistent with a basic solution?

The Clean Air Act Amendments of 1990 authorize the assignment of permits to corporations allowing a predetermined level of sulfur dioxide emissions.Permit holders that keep emissions below the permit level may

When dissolved in water,hydrogen bromide (HBr) forms hydrobromic acid.Determine the hydroxide ion concentration in a 4,500 mL solution containing 3.78 g hydrogen bromide;Kw = 1.00 × 10¯14.

A proton released by an acid in aqueous solution quickly reacts with water to form a hydronium ion.What product is formed when a proton reacts with ammonia (NH3) ?

Calculate the pH of a solution prepared by dissolving 1.2 g of potassium hydroxide (KOH) in 1,250 mL of water.

Which chemical equation shows the dissociation of magnesium hydroxide?

Which chemical equation shows the dissociation of 2 protons from trihydrogen phosphate (phosphoric acid) ?

Sulfur oxides have been implicated as important contributors to the problem of acid rain.What is the principal anthropogenic source of these compounds?

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

The pH of lemon juice is approximately 2.40.At this pH,the hydronium ion concentration is closest to which concentration?

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

The formation of nitric oxide (NO,a precursor to nitric acid) from oxygen and nitrogen is ordinarily a very slow process.What accounts for its more rapid formation in automobile exhaust?

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?

Coal switching refers to the practice of

The hydronium ion concentration in a solution with pH 10 is __________ than the hydronium ion concentration in a solution with pH 13.

Predict the products of this reaction: KOH + HNO3 →

Calculate the amount of sulfur dioxide produced annually by a power plant that burns 7.5 million metric tons (t) of coal over a year.Assume that the coal is 2.4% sulfur by mass.1 metric ton (t) = 1000 kg.

Which reaction most accurately represents the dissociation of nitrous acid (HNO₂) in water?

When dissolved in water,hydrogen bromide (HBr) forms hydrobromic acid.Determine the hydroxide ion concentration in a 4,500 mL solution containing 3.78 g hydrogen bromide;K_w = 1.00 × 10¯¹⁴.

A proton released by an acid in aqueous solution quickly reacts with water to form a hydronium ion.What product is formed when a proton reacts with ammonia (NH₃) ?

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?

Predict the products of this reaction: KOH + HNO₃ →