Acid and Base. Skip to main content

Highlights

Science: one of the army of our country

⚔️🔬 Science 🔬⚔️         The importance of science is well known today. Science is not just limited branch, it is very wide branch and extend study of the basics of science makes a new branch of science. For example, Biology is branch in which the study of living being occurred,  Chemistry the study of chemical, Microbiology the study of microorganisms, cell biology the study of all types of cell....etc....etc. But science does not seem to be as important as it should be. Now people understand that there is no alternative without science. Every one know that the science is a great career field, this is also a good education field, that's all there is to it. Still, we can say that ' Science is the one of the army of our country '. What is this nonsense....... How is that........ So let to prove this sentence, with evidence.... At first I would like to say that, we can't imagine the world without Science, because Science has given us so much
Post a Comment

Acid and Base.

 * Acid and Base *

Acid and Base are the concept of chemistry but in every day like it is important. 
For example, after getting of more amount of lunch or dinner we says , 'enough, excess amount of food, produce acidity'.
Some time stomach produce Gas at that time we get lemon drink, some time we get soda. This is common every day life use of acid and base.
But the machanism behind this, stomach produce more amount of digestive liquid this liquid is acidic, for minimize this we get antacid or soda like basic component.

What is acid?                              What is base ?
And chemistry behind this let's start with acid.

Acid and base: concept of chemistry

*Acid

The word acid is derived from Latin word acidus. Acidus means Sour. The general taste of Acid is Sour.

Acid definition ÷ 

The substance which produces  H+ ion in aqueuse
Solution is called as Acid .

Properties of acid ÷

  1. Acids are liquid. 
  2. Taste of acid is Sour.
  3. The aqueuse Solution of acid conduct electricity.
  4. Acid Reacts with metals to produce Metal Oxides.
  5. In acid blue litums turns to Red.
  6. pH scale measured the pH+ concentration of Acid.

Examples of acids ÷

Hydrochloric acid (HCL), Citric acid , Hydrofluoric acid (HF).......etc

pH scale of acid ÷ 

Is Less than 7


  • If pH of solution is in between 1to 6 then solution is Weak acidic.
  • If pH of solution is 0 and  1 then solution is Strong acidic.

*Base 

Definition ÷ 

The substance which produces  OH- (Hydroxid) ion in aqueuse solution is called as Base.

Properties of base ÷

  1. Taste of Base is bitter.
  2. Base are conductor of electricity.
  3. In base red litmus turns to Blue.
  4. Base mixed with acid they lose their basicity.
  5. pH scale measured the pOH- concentration of base.

Example of base ÷

Sodium Hydroxide (NaOH), Calcium Hydroxide ,.......etc

pH scale of base ÷

Is Greater than 7.


  • If the pH of solution is in between 8 to 13 then the solution is weak base.
  • If the pH of solution is 13 and 14 then the solution is strong base.


pH scale

*Neutralisation ÷


The acid reacts with base then salt and water products are formed.
This acid base reaction is known as Neutralisation reaction.

acid + base ---> salt + water
E.g.
HCl + NaOH ---> NaCl +H2O










Science world


Labels:

Comments

Post a Comment

Popular posts from this blog

Concepts of atom

In Last article We Define  Atom ,  Molecules  & Nuclei.  And the molecule    Atom and atomic concept is the very interesting part and it's not just interesting but important part for chemistry, physics.    Atom is considered as the basic and fundamental unit of the molecule or elements.    Atom is the important back bone of the chemistry, because no one any chemical compound is made up of without atom. Atom is the basic , fundamental and functional unit of the elements is not wrong.     Atomic model and atomic concept of the atom, Scientists gives verious information and the reality of the atom. For the extra and proper information, some scientists like J.J. thomason, John Dalton, and Rutherford gives the atomic theory, due to which the concept of atom for understanding is very easy. Before the atomic theory, we start the concept related to atom.                *  The Concept Related to Atom * In 1808 , John Dalton performed an his experiment and prove that
1 comment
Read more

Units, fundamental quantities and derived quantities.

What mean by Units......? Unit is the basic part of the measurement, because without unit we don not measured anything. Unit:- The reference standard used for the measurement of a physical quantity is called a Unit. System of units:- C.G.S. M.K.S. F.P.S. S.I. units :-            Use of different system of units became very inconvenient for exchanging scientist information between different parts of the world.     Hence, in October 1960 at the Eleventh International General Conference of weights and measures, in Paris, a common system of units called  "System International d' Units"  was accepted.         This system of units called S.I. units consistent of seven fundamental units, two supplementary units and large number of derived units.      Units are classified into two  groups    F undamental units  and  Derived units . The seven basic physical quantities: Length, mass, time, temperature, electric current, lumino
Post a Comment
Read more

COVID19 : A blessing or A curse

COVID-19 The novel corona or COVID-19 today all world worry about this.  What you need to know about the Corona virus pandemic. What is Corona virus ? People know about Corona virus . the biggest health club and organization like WHO and etc. plays an important role by getting awareness program, scientists and researchers work on Corona virus for getting more information about structure, shape, genetic material and all this is important for making drugs against the corona virus. But at the time of present it's not possible. All countries are contributing to the fight against novel corona virus. Everyone knows how dangerous corona is !!!!! But the truth is something different .  So let's start with my question...... Is Corona really dangerous ???? Yes, is dangerous for human and sometimes animals. Today in the world almost 247 thousands peoples are death due to the corona virus and this chain continues. If you think from the other side...... Corona
5 comments
Read more