Explain the role of PH in our daily life
Answers
Answer:
scale :-
A scale for measuring the hydrogen ion concentration in a solution is called pH scale.Higher the hydrogen ion concentration, lower is the pH value.
pH of a solution is defined as the negative logarithm (to the base 10) of the hydrogen ion concentration in the solution.
\hrulefill\hrulefill
Role of pH in everyday day life :-
Human blood, tears and saliva have a pH range of 7.0 to 7.8, which is optimum for survival.
For gardening and farming, the best crops are usually obtained with neutral or acidic soil (pH — 6.5 to 7.0). Below pH 6.5, the soil is not suitable for normal growth of plants.
HCl produced in the stomach is important for digestion. Hyperacidity (increases in the amount of acid during indigestion) causes pain and irritation. The excess acid is neutralised by the intake of antacids such as magnesium hydroxide (milk of magnesia).
When the pH inside the mouth becomes lower than 5.5, it causes tooth decay. Toothpastes are generally basic. They neutralise the excess acid and prevent tooth decay.
Stings of insects such as bees, ants, wasps contain methanoic acid which cause pain and irritation. Use of a mild base like baking soda on the stung area gives relief.
Answer:
pH is important in everyday life-----
1. Existence of living beings:-
Organisms require a specific pH for their ideal growth and development. In the human body, all the physiological reactions take place in the pH of 7-7.8. The existence of aquatic plants, animals and microbes is at risk when acid rains mix with natural water bodies.
2. Digestion of food:-
The pH is important at different levels in the digestive system of the human body for the proper digestion of food. In the stomach, hydrochloric acid is secreted as food enters the stomach. It turns the pH of the stomach between 1 and 3. This pH is important for the activation of the enzyme pepsin, which helps in the digestion of protein in food.
3. Importance in soil:-
The pH of soil is a critical factor in the growth of crops and other plants. pH 6.5 to 7.3 is ideal for the growth of shrubs and crops. If the pH of soil is less than 6.5, lime is added to it to neutralise its acidity. Similarly, if the pH of soil is more than 7.3, gypsum is added to neutralise its basicity.
4. Stopping tooth decay:-
Teeth decay when the pH of the mouth falls below 5.5. Bacteria present in food and the mouth breakdown food particles left in the mouth and form acids. This results in lowering the pH of the mouth. Tooth powder and tooth paste which are used for cleaning of teeth are basic in nature. They neutralise the acid produced in the mouth and protect the teeth from decay.
5. Remedy for acidic effect of honeybee bite
When a honeybee bites, it inserts an acidic substance Melittin in our body. To get relief from it, an aqueous solution of a basic substance such as baking soda is applied around the place of bite. It helps to neutralise the acidic poison.
PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME.