Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.
What chemicals are involved in acid rain?
Acid rain results when sulfur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the atmosphere and transported by wind and air currents. The SO2 and NOX react with water, oxygen and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground.
What are 4 causes of acid rain?
Human activities leading to chemical gas emissions such as sulfur and nitrogen are the primary contributors to acid rain. The activities include air pollution sources emitting sulfur and nitrogen gases like factories, power generation facilities, and automobiles.
How is acid rain formed chemical equations?
Formation of acid rain:
Sulphur dioxide accounts for most of the acid rain problems. … (b) Sulphur dioxide can react with oxygen and water to form sulphuric acid. 2SO2(g) + O2(g) + 2H2O(I) → 2H2SO4(aq) Acid rain occurs when the pH of rain water falls between 2.0 to 5.5.
What are the three main gases that cause acid rain?
These include carbon dioxide, nitric oxide, nitrogen dioxide and sulfur dioxide. The gas most responsible for the “acid rain” effect on plants and water systems is sulfur dioxide, although carbon dioxide is the most plentiful combustion product emission gas.
How does sulfuric acid make acid rain?
Add sulfuric acid to the distilled water.
Using the eyedropper, add some sulfuric acid to the water, stir, and check the pH with the pH meter. Keep adding sulfuric acid and stirring until the water has a pH around 4.0. If you’re using pH strips, dip the strip into the water and wait until the strip changes color.
How is sulfur dioxide formed?
Sulfur dioxide, SO2, is a colorless gas or liquid with a strong, choking odor. It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores (aluminum, copper, zinc, lead, and iron) that contain sulfur. Sulfur dioxide dissolves easily in water to form sulfuric acid.
What are the major sources of acid deposition?
The biggest sources are coal-burning power plants, factories, and automobiles. When humans burn fossil fuels, sulfur dioxide (SO2) and nitrogen oxides (NOx) are released into the atmosphere. Those air pollutants react with water, oxygen, and other substances to form airborne sulfuric and nitric acid.
Can acid rain burn your skin?
Very strong acids will burn if they touch your skin and can even destroy metals. Acid rain is much, much weaker than this; it is never acidic enough to burn your skin. Rain is always slightly acidic because it mixes with naturally occurring oxides in the air.
What pH is acid rain?
However, when rain combines with sulfur dioxide or nitrogen oxides—produced from power plants and automobiles—the rain becomes much more acidic. Typical acid rain has a pH value of 4.0. A decrease in pH values from 5.0 to 4.0 means that the acidity is 10 times greater.
How do the chemical contents of acid rain affect plants infrastructures buildings and people?
Acid rain damages buildings and structures because it dissolves the stone or corrodes the metal that is exposed to the weather. Before people became aware of the problems that acid rain caused, they often used metals, limestone and marble as building materials exposed to rain and fog.
How does NO2 form acid rain equation?
In air, NO is oxidized to nitrogen dioxide (NO2) (Equation 4), which in turn reacts with water to give nitric acid (HNO3) (Equation 5). This acid dissociates in water to yield hydrogen ions and nitrate ions (Equation 6), lowering the pH of the solution.