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
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
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
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