What is the use of ph scale in everyday life
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Answer:
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Explanation:
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Answer:
pH plays a very important role in our everyday life. 1. In our digestive system :Hydrochloric acid produced in our stomach helps the digestion of food without causing any harm to the stomach. But when the amount of the acid goes beyond a certain limit due to indigestion, pain and irritation are created in the stomach.
Explanation:
Role of pH in everyday life
Role of pH in everyday life :
pH plays a very important role in our everyday life.
1. In our digestive system :Hydrochloric acid produced in our stomach helps the digestion of food without
causing any harm to the stomach. But when the amount of the acid goes beyond a certain limit due to
indigestion, pain and irritation are created in the stomach. So, in order to neutralize the effect of excess acid, a
mild base called antacid is usually taken. Magnesium hydroxide (milk of magnesia) is a mild base which is
usually used as an antacid.
2. Acids cause tooth decay : When we eat sugary food, it gets degraded by bacteria present in the mouth and
an acid is formed. When the pH becomes lower than 5.5, tooth enamel gets corroded. Saliva, which is slightly
alkaline, produced in the mouth neutralizes some acid, but excess acid remains unaffected. The excess acid can
be removed only by the use of toothpaste which is alkaline. Neem stick contains alkaline juice. So, the cleaning
of tooth by Neem stick also helps to reduce tooth decay.
3. Acid is produced in fatigued muscle : As a result of physical exercise, stiffness and pain in the muscle starts
due to the formation of lactic acid. The supply of oxygen in the muscle is reduced. This causes difficulty in the
release of energy leading to increase in the rate of anaerobic metabolism. As a result, lactic acid gets
accumulated in the muscles.
4. Some animals and plants contain acids Honey-bee injects an acid through its stings which causes pain and
irritation. Hence, a mild base like baking soda is applied to treat the wound. Similarly, nettle leaves, which have
stinging hairs, when touched inject formic acid in our body. This causes a burning pain.
Note: Nettle is a stinging plant. When one accidentally touches its hairs, a painful effect is produced. As a
remedy, the affected area is rubbed with the dock plant. The dock plant is alkaline which neutralizes the effect
of the acid.
5. The brilliance of a tarnished copper vessel can be restored by using acid : You know, lemon juice contains an
acid. In order to clean a copper vessel, we rub it with the piece of a lemon. The tarnish on the vessel is caused
by the formation of a layer of basic copper oxide. Since lemon juice contains citric acid, it reacts with the
copper oxide to form copper citrate and is washed away. The vessel then regains its shining appearance.
6. pH of soil : Soils are generally acidic. Plants require definite pH range for their proper growth. They do notgrow in alkaline soil. Many plants do not grow properly in highly acidic or highly alkaline soil. So, highly acidic
soil is treated by spreading quicklime, slaked lime or calcium carbonate to lower its acidity.