Acid rain - the chemistry declared him

01-03  Source: Network gathering  Views:3 


Acid rain - the chemistry declared him

Acid Rain looks like normal rain.

What is acid rain?

  • As more carbon dioxide from the atmosphere dissolves in water, even normal rain and normal open waters are slightly acidic. The resulting carbonic acid ensures that the pH is at about the 6th
  • This carbonated rain does not indicate the chemical despite acidic pH as acid rain. If the rain because of other dissolved acids acidic, the pH ie less than 5.5, it is called acidic.
  • Sulfur dioxide and sulfuric acid may be responsible. You're probably wondering how these acids can get into the rain. Gaseous sulfur oxides resulting from the combustion of sulfur-containing compounds which form these two acids with oxygen and water.
  • Acid rain is produced not only by sulfur-containing compounds but also the chemistry of the gaseous nitrogen oxides leads to acids which reduce the pH-value in the rain. The acids are nitric acid and nitrous acid to a small extent.
  • The nitrogen oxides are released by bacteria and burns of nitrogenous compounds.
  • Due to the low pH and the high acid concentration plants, waters and buildings are damaged. Therefore, nowadays be desulfurized fuels prior to combustion, converts the nitrogen oxides with the aid of catalysts.

Declaration of Chemistry

  • Carbonic acid contained formed by dissolving carbon dioxide in water. The equation for this process is as follows:
    CO 2 + H 2 O → H 2 CO 3
  • Sulfurous acid is formed by dissolved sulfur dioxide. The chemistry describes this process with this equation:
    SO 2 + H 2 O → H 2 SO 3
  • Sulfuric acid can be caused by oxidation of sulfur dioxide and then releasing. Direct course dissolving sulfur trioxide has the same product result.
    2 SO 2 + O 2 → 2 SO 3
    SO 3 + H 2 O → H 2 SO 4
  • The oxidation of sulfurous acid also leads to the formation of sulfuric acid.
    2 H 2 SO 3 + O 2 → 2 H 2 SO 4
  • The nitrous acid and nitric acid formed by the reaction of nitrogen dioxide with water.
    2 NO 2 + H 2 O → HNO 2 + HNO 3
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