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Molecular Mass and Formula Mass

 Hello!  How are you all?  Today we will discuss molecular mass and formula mass.  Molecular Mass: The sum of atomic masses of all the atoms present in one molecule of a molecular substance, is it's molecular mass.  For example: molecular mass of water is 18 amu, chlorine is 71 amu and carbon dioxide is 44 amu.  Formula Mass: The sum of atomic masses of all the atoms present in one formula unit of a substance.  For example: formula mass of sodium chloride is 58.5 amu and that of CaCO3 is 100 amu.  So this was the short introduction of basic terms. See you soon. Stay tuned. 

Chemical formula

 Hello Everyone!  Today we will discuss chemical formula. Let's start.  Chemical formulas are of two types: 1-Emperical Formula 2-Molecular Formula Empirical Formula: It is defined as the formula that shows the ratio of elements present in a compound, but not the actual numbers of atoms found in the molecule. It is also known as simple formula in chemistry.  Molecular Formula: It gives the total number of atoms of each element in each molecule of a substance.  This was the short intro of the basic terms.  Hope you get clear. 

Relative Atomic Mass

 Hello readers! Hope you will be fine. Our today's topic is relative atomic mass. let's start! It is the average mass of the atoms of that element as compared to1/12th the mass of an atom of carbon-12 isotope. Based on carbon-12 as a standard, the mass of an atom of carbon is 12 units and 1/12th of it comes to be 1 unit. When we compare atomic masses of other elements with atomic masses of carbon-12 atom, they are expressed as relative atomic masses of those elements. The unit of relative atomic mass unit is amu (Atomic mass unit). One atomic mass unit is 1/12th the mass of one atom of carbon-12.  This was the short intro of Relative atomic mass.  See you next with another topic. Thank you!

Atomic number and mass number

 Hello My dear Readers!  Hopefully you all are fine and also doing experiments in your life. Let's start our today's topic. Today we will discuss atomic number and mass number.  Atomic number: The number of protons present in the nucleus of its atom is called atomic number. Atomic number is represented by 'Z'. All the atoms of an element have same number of protons in their nuclei so thay have same atomic number. Each individual element has specific atomic number that is called identification number. For example hydrogen have 1 proton so it's atomic number is Z=1. In oxygen all atoms have 8 protons, have atomic number Z=8 .  Mass number: It is the sum of number of protons and number of neutrons present in the nucleus of an atom. It is represented by 'A'.  It is calculated as:         A=Z+n Where n is number of neutrons.  For example: hydrogen atom has on proton and no neutron in its nucleus, its mass number A = 1 + 0 = 1 . Carbon atom has protons and 6 neut

Classification of matter

 Hello everyone!  Today we will dicuss classification of matter.  A piece of matter in pure form is called a Substance. While impure matter is called Mixture.  Further Substance is divided into element and compound. Similarly, Mixtures are of two types homogenous mixture and heterogeneous mixture.  Substance: Element: According to modern definition of element "it is a substance made up of same types of atoms, having same atomic number and cannot be decomposed into simple substance by ordinary chemical means. It means that each element is made up of unique type of atoms that have very specific properties.  Elements occur in free state as well as in combined state. They may be solid, liquid or gas.  Compound: It is a substance made up of two or more elements chemically combined together in fix ratio by mass. As a result of this elements lose their own properties and produce new substances that have different properties Mixture: Homogenous mixture: Mixture that have uniform com

Atom

 Hello!  How are you all? Today our topic is Atom.  We all heard about atom.  The smallest particle of an element is called atom. Atoms are the basic building blocks of matter. Anything that takes up space and anything with mass is made of atom.  An atom is a particular of matter that uniquely defines a chemical element. An atom consist of a central nucleus that is surrounded by one or more relatively heavy particles known as proton and neutron.    This was the short introduction of atom. Next we will discuss structure of atom.  Structure of Atom: The total mass of an atom, including the protons, neutrons and electrons, is the atomic mass or atomic weight. The atomic mass or weight is measured in atomic mass units. Electrons contribute only a tiny part to the mass of the atomic structure, however, they play an important role in the chemical reactions that create molecules. The atomic weight can be thought of as the number of protons plus the number of neutrons. Because the number of ne

Matter

Hello everyone!  How are you all? I hope you all will be fine and having fun. Previously we have discussed many fields of chemistry. Chemistry is actually a very vast branch of science. I'm trying my very best to discuss each and every concept. Today my topic is "MATTER ". We are all familiar with matter. The definition of Matter is anything that has some mass and volume and occupies some space. It is fairly simple to demonstrate that they have mass and take up space.   All physical objects are made of matter. Matter itself is composed of tiny building blocks known as "atoms". There are only 118 different types of atoms known to man. Frequently, atoms are bonded together to form "molecules". Matter can be classified into different categories based on the physical properties exhibited by them and the states in which they exist; these are called states of matter. Following are the basic three states of matter: Solid: In solids, particles are tightly or c

Branches of chemistry part 3

Hello readers!  We have already discussed main branches of chemistry. Today we will discuss further.  Agro Chemistry: It examines chemical processes important to agriculture. It includes pesticides, herbicides, fungicides and seed treatment.  Forensic Chemistry: It can be defined as practice of application of our knowledge in field of chemistry to solve crimes. Most common methods used are spectroscopy and chromatography.  Astro Chemistry: It is the study of chemical reaction in space. This discipline is an overlap of chemistry and astronomy.  Coordination Chemistry: It is the study of coordination complexes, consists of central metal atoms mostly and surrounded by ligands.  Medicinal Chemistry: It is the intersection of chemistry especially synthetic organic chemistry. Medicinal chemistry designs, synthesized and studies drugs and other therapeutic agents.  Geo Chemistry: The study of chemical composition of rocks, minerals, atmosphere of Earth and other planetary bodies.  Organo meta

Branches of chemistry Part 2

 Hello!  Previously we have discussed five main fields of chemistry. Today we will discuss other disciplines of chemistry.  Industrial Chemistry: The branch which deals with the manufacturing of chemical compounds on commercial scales is called industrial chemistry. It deals with the manufacturing of various raw materials for various industries such as fertilizer, soap, textile, agriculture product, paints and paper etc.  Environmental Chemistry: It is the branch which deals with the study of components of environment and effects of human activities on the environment. The knowledge of chemical process taking place in environment is necessary for its improvement and protection against pollution.  Nuclear Chemistry: It is the branch of chemistry which deals with the radioactivity, nuclear processes and properties. It's main concern is with atomic energy and it's uses in daily life. It also has vast applications in medical treatment, preservation of food and generation of electri

Branches of Chemistry

 Hello!  Today's topic is "Branches of Chemistry" We are living in the world of chemicals. We all depend upon different living organisms which requires water,  oxygen or carbon dioxide for their survival. Chemistry had a wide scope in all aspects of life and is serving the humanity day and night.  The five main branches of chemistry are organic, inorganic, analytical, physical, and biochemistry. Now we will discuss about each branch.  Organic Chemistry: It is the study of  compounds of carbon and hydrogen and their derivatives. Organic compounds occur naturally and are also synthesized in the laboratory. It has applications in petroleum, petrochemicals and pharmaceutical industries.  Inorganic Chemistry: It deals with the study of all the elements and their compounds except those of compounds of carbon and hydrogen and their derivatives. It has applications in every aspect of chemical industry such an glass, cement, ceramic and metallurgy.  Analytical Chemistry: It is the

Role of CHEMISTRY

 Hello Viewers! Previously we have discussed about meaning of chemistry.Today we will discuss some roles of chemistry in daily life. The knowledge that provides understanding of this world and how it works, is science. Development of science and technology has provided us a lot of facilities in daily life. Have you ever wondered about the importance of chemistry in daily life? You might ask this question if you are student of chemistry. Finding it's answer is one of interesting homework. Here's a look why chemistry is important.  Imagine the role and important of important petrochemical products,  medicines and drugs,  soap,  detergents,  paper,  plastics, paints and  pigments,  insecticides,  pesticides which all are fruit of the efforts of chemists. The development of chemical industry has also generated toxic wastes, contaminated water and polluted air around us. On the other hand chemistry also provides knowledge and techniques to improve our health and environment and to e

Meaning of chemistry

 Hello!  I'm here with my new blog.  So, today I will discuss that what is chemistry.? Before studying anything we have to know about it. Without wasting more time I'm discussing my today's topic "chemistry". Chemistry is the branch of science which deals with the properties of matter,  composition of matter,  reaction in matter,  uses of matter,  changes in matter  and laws and principles which govern these changes.  This is the brief definition of chemistry and describe every aspect of chemistry.