Acid rain is produced from CO2, NO????, and SO???? dissolving in atmospheric water molecules. This causes a decrease in the pH o
1 answer:
Explanation:
When emission of industrial gases like sulfur dioxide, carbon dioxide and nitrogen oxide combine with water then the rain that consists of these acids fall into the atmosphere is known as acid rain.
When these gases combine with water then they result in the formation of an acid that is present in an aqueous phase.
So, when sulfur trioxide combines with water then the reaction will be as follows.
Hence, we can conclude that sulfuric acid is formed when sulfur trioxide gas reacts with water.
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Water decomposes when electrolyzed to produce hydrogen and oxygen gas. If 2.5 grams of water were decomposed 1.04 grams of oxygen will be formed.
BCA table:
2O ⇒
+
B 0.13 0 + 0
C -0.13 0.065 + 0.065
A 0 0.065
Explanation:
Balanced equation for water decomposition into hydrogen and oxygen gases
2O ⇒
+
B 0.13 0 + 0
C -0.13 0.065 + 0.065
A 0 0.065
Number of moles of water =
mass = 2.5 grams
atomic mass= 18 grams
number of moles can be known by putting the values in the formula,
n =
= 0.13 moles
2 moles of water gives one mole of oxygen on decomposition
so, 0.13 moles of water will give x moles of oxygen on decompsition
=
x = 0.065 moles of oxygen will be formed.
moles to gram will be calculated as
mass =number of moles x atomic mass
= 0.065 x 16
= 1.04 grams of oxygen.