uses of neutralization in our daily life
Answers
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Antacids contains bases such as aluminium hydroxide, Al(OH)3 and magnesium hydroxide, Mg(OH)2 to neutralise the excess acid in the stomach. Vinegar is used to cure wasp stings that are alkaline in nature. Baking powder is used to cure bee stings and ant bites that are acidic in nature.
A salt is any compound which can be derived from the neutralization of an acid and a base. The word "neutralization" is used because the acid and base properties of H+ and OH- are destroyed or neutralized. In the reaction, H+ and OH- combine to form HOH or H2O or water molecules. A neutralization is a type of double replacement reaction. A salt is the product of an acid-base reaction and is a much broader term then common table salt as shown in the first reaction.
The following are some examples of neutralization reactions to form salts.
a. HCl + NaOH --> NaCl + HOH
b. H2SO4 + 2 NH4OH --> (NH4)2SO4 + 2 HOH
c. 2 NaOH + H2CO3 --> N2CO3 + 2 NaOH
See the graphic on the left. Carbon dioxide in the breath reacts first with the water to form carbonic acid:
CO2 + H2O --> H2CO3
The carbonic acid then further reacts with the lime water in the neutralization reaction. The phenolphthalein is pink in the presence of base and turns colorless when all of the base has been neutralized and there is a slight excess of the carbonic acid.
d. Lime water: Ca(OH)2 + H2CO3 --> CaCO3 + 2 HOH
Practice:
HNO3 + KOH --> +
H3PO4 + 3 NaOH --> +
The non-metal oxide gases react with water to produce acids (ammonia produces a base).
Example:
SO2 + HOH === H2SO3
2 NO2 + HOH === HNO2 + HNO3
Cl2 + HOH === HClO + HCl
SO3 + HOH-->
NH3 + HOH -->
Answer:
Antacids contains bases such as aluminium hydroxide, Al(OH)3 and magnesium hydroxide, Mg(OH)2 to neutralise the excess acid in the stomach. Vinegar is used to cure wasp stings that are alkaline in nature. Baking powder is used to cure bee stings and ant bites that are acidic in nature.
A salt is any compound which can be derived from the neutralization of an acid and a base. The word "neutralization" is used because the acid and base properties of H+ and OH- are destroyed or neutralized. In the reaction, H+ and OH- combine to form HOH or H2O or water molecules. A neutralization is a type of double replacement reaction. A salt is the product of an acid-base reaction and is a much broader term then common table salt as shown in the first reaction.
The following are some examples of neutralization reactions to form salts.
a. HCl + NaOH --> NaCl + HOH
b. H2SO4 + 2 NH4OH --> (NH4)2SO4 + 2 HOH
c. 2 NaOH + H2CO3 --> N2CO3 + 2 NaOH
See the graphic on the left. Carbon dioxide in the breath reacts first with the water to form carbonic acid:
CO2 + H2O --> H2CO3
The carbonic acid then further reacts with the lime water in the neutralization reaction. The phenolphthalein is pink in the presence of base and turns colorless when all of the base has been neutralized and there is a slight excess of the carbonic acid.
d. Lime water: Ca(OH)2 + H2CO3 --> CaCO3 + 2 HOH
Practice:
HNO3 + KOH --> +
H3PO4 + 3 NaOH --> +
The non-metal oxide gases react with water to produce acids (ammonia produces a base).
Example:
SO2 + HOH === H2SO3
2 NO2 + HOH === HNO2 + HNO3
Cl2 + HOH === HClO + HCl
SO3 + HOH-->
NH3 + HOH -->
Explanation:
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