Transcript 19_Power_point_by_Kurt_files/Acid Rain

Acid Rain
By Kurt Hoskin
Formation of acidic or basic solutions
from metal and non-metal oxides
Metal Oxides
CaO  Ca+2 + O-2
O-2 + H20  2OH
Non-metal Oxides
CO2 + H2O  H2CO3

Acid Rain pH Conditions
In order for rain to be
called Acid Rain, it
must have a pH lower
than normal rain,
which has a pH of 5.6
Normal Rain Water
Normal rain has a pH of 5.6 with the CO2 from
non-human activity
 Normal rain is actually carbonic acid

NOx
2NO2 + H2O  HNO3 + HNO2
The main source of NOx’s is motor vehicle
emissions
SOx
Some sources of SOx’s
include coal-fired
power generating
stations and non
ferrous ore smelters
SO2 + H2O  H2SO3
SO3 + H2O  H2SO4
Environmental Problems caused by
Acid Rain
Leaching of heavy
metal ions into lakes
on granitic strata
 Aquatic life and
waterfowl populations
threatened
 Possible damage to
human health, crops,
and forests
