Inorganic Chemistry

Mole

Mole gram atoms Avogadro’s Mole is the number of a substance which contains Avogadro’s number (NA) of particle’s. The numbers can also be refer to as Avogadro’s constant. The symbols is given as L, the value is very large, can

Electromagnetic radiation

Electromagnetic radiation Electromagnetic radiation is radiation which have both magnetic and electric properties.  Electromagnetic radiation occupied wide area of radiation that can be explained or group by frequency or it wavelength. The distance between the two successive peaks is called

Balance of chemical Equation

Balance of chemical Equation Basically, the knowledge implanted in the laws of combination and Dalton atomic theory where use to balance any chemical equations. Dalton atomic theory was stated by English chemist John Dalton in year 1808. The main summary

conservation law of matter

Law of conservation of matter The law state that matter cannot be created nor destroy in the process of chemical reaction. Source: File:Combustion reaction of methane.jpg – https://en.wikipedia.org What these law is telling us is that we cannot create atom

Describe the discovery of noble gas?

Noble gas was discovered by a french astronomer Pierre’s Janssen in the year 1868. But before then noble gas was mistakenly isolated by henry cavendish in the year 1785 when he was investigating the compositions of air. Henry cavendish experiment

Describe the discovery of noble gas?

Noble gas was discovered by a french astronomer Pierre’s Janssen in the year 1868. But before then noble gas was mistakenly isolated by henry cavendish in the year 1785 when he was investigating the compositions of air. Henry cavendish experiment

Why there is a steady increase in the boiling point from helium to radon atom of noble gas?

increase of boiling point from helium to radon is as a result of increase of the atomic electron down the group of the noble gas from helium atom to radon. since van der waal force depend on the numbers of

What is the relationship between boiling point and van der waal force?

The stronger the vanderwall force the higher the boiling point. To melt or boil a simple molecular substance we must overcome the intermolecular force. For example if not because of the intermolecular force that holds molecules together everything in the

Predict the percentage of s and p character in SP² hybridization orbital

Hybridization was introduced to explained the molecular structure when the valence bond theory fail to correctly predict them, it is experimental observation observed that bond angle in an organic compound are close to 109 degrees 120 degree or 180 degree

Predict the percentage of s and p character in SP² hybridization orbital

Hybridization was introduced to explained the molecular structure when the valence bond theory fail to correctly predict them, it is experimental observation observed that bond angle in an organic compound are close to 109 degrees 120 degree or 180 degree

ionization energy of Noble

before discuss on the ionization of noble gas, we need to define and explain what ionization is all about. Ionization The ionization energy (Ei)  can defined primarily as the highest amount of energy needed to remove the most loosely bound electron in the valence

Composition of dry air

Dry air Composition On the post we going list the composition of dry air, will include volume % and B.P (boiling point). Gas % by volume B.P (boiling point)K N2 78.03 77.2 O2 20.99 90.1 Ar 0.93 87.2 CO2 0.033

Solubility, and solution

the solubility of a solid is normally defined as the mass in grams which will dissolve in 100g of solvent to form a saturated solution at a given temperature. Question: an evaporating dish weighed 11.68g; partly filled with a saturated

Mass spectra

mass spectra (singular: mass spectrum singular) Is a record of the chemical constituent of a substance separated according to their mass and presented as a spectrum as measured using a mass spectrometer. One of these versions of this device is

Uncertainty principle

Uncertainty principle is sometimes called indeterminacy principle. Warner Heisenberg, a German Physicist, from his experiment in year 1920s discover that the position and motion of particle wave cannot be pinned down. What its mean is that you can not find

Oxidation number

directed number Numbers such as minus 2 plus 2 which has specifically stated direction are called directed number. Example add up -2 -3 +2 Solution -2 +2 -3 = +2-5 =4 Divide 8 by 2 Solution 8/2 = 4 Subtract

Formulae and percentage composition

Element pose five combination powers. For example, 1 atom of oxygen combine with 2 atom of hydrogen, to form water, but 1 atom of chlorine combines with only 1 atom of hydrogen to form hydrogen chloride (HCl). With this, oxygen

LITHIUM GENERAL PROPERTIES

General properties of Lithium Standard atomic weight (Ar) [6.938, 6.97] conventional 6.94 Appearance Silvery-white Atomic Number  (Z) 3 Group number Group 1 Period number Period 1 Block s-block element Electron per Shell 2, 1 Category of the element Alkali metal

HYDROGEN

GENERAL PROPERTIES OF HYDROGEN Standard atomic weight [1.00784, 1.00811] conventional: 1.008 Appearance colorless Atomic Number 1 Group number 1 Period number 1 Block s-block element Electron per Shell 1 Category of the element Diatomic non metal Electronic configuration 1S1 physical

Wave-Particle Duality

Dual Particle of wave Another milestone to the wave particles arise in year 1924 when French Scientist called Loius de Broglie a stream of electron particles may have the same way particles like that of light, predict that a particle