Author: Bolaji .G

Chemistry
Posted in SS 1 Chemistry (1st, 2nd & 3rd Term) Chemistry

APPPLIED CHEMISTRY

CHEMICAL INDUSTRY Chemical industry is define as one that uses chemistry to make chemicals from other chemical substances (raw materials) The important raw materials used…

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Chemistry
Posted in SS 1 Chemistry (1st, 2nd & 3rd Term) Chemistry

HYDROCARBONS

HYDROCARBON AND CRUDE OIL Hydrocarbon are very simple organic compound composed mainly of hydrogen and carbon only. The sources of hydrocarbons are coal, natural gases…

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Chemistry
Posted in SS 1 Chemistry (1st, 2nd & 3rd Term) Chemistry

TRIOXOCARBONATE (iv) ACID

H2CO3 is formed when CO2(g) is dissolved in water. H2CO3 is a weak dibasic acid. It forms two series of salts: Normal trioxocarbonate (iv) Acidic…

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Chemistry
Posted in SS 1 Chemistry (1st, 2nd & 3rd Term) Chemistry

COAL AND FUEL GASES

COAL Coal is an impure form of carbon. Coal is a complex mixture of compounds composed mainly of carbon, hydrogen and oxygen with small amounts…

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Chemistry
Posted in SS 1 Chemistry (1st, 2nd & 3rd Term) Chemistry

OXIDE OF CARBON

CARBON (iv) OXIDE The percentage composition of carbon (iv) oxide in the atmospheric air is about 0.03% by volume while in dissolved air is about…

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Chemistry
Posted in SS 1 Chemistry (1st, 2nd & 3rd Term) Chemistry

CARBON: OCCURRENCE, ALLOTROPES, USES & PROPERTIES

OCCURRENCE OF CARBON It occurs naturally as diamond and graphite. It occurs in an impure form as coal. It occurs in the combined state as…

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Chemistry
Posted in SS 1 Chemistry (1st, 2nd & 3rd Term) Chemistry

BASES AND ALKALIS

A base is a substance which will neutralize an acid to yield a salt and water only. Most oxide and hydroxide of metals are bases…

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Chemistry
Posted in SS 1 Chemistry (1st, 2nd & 3rd Term) Chemistry

ACIDS: CLASSES, BASICITY, PHYSICAL & CHEMICAL PROPERTIES

Definition: An acid is substance which in aqueous solution produces hydroxonium ion (H3O+) or hydrogen ion (H+) as the only positive ion. Also, acids can…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

ALKANOLS

Alkanols is a homologous series with general molecular formula of CnH2n+1OH or ROH. The functional group in alkanols is the hydroxyl (-OH) group.   NOMENCLATURE…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

ALKYNES II

Alkynes are the homologous series of unsaturated hydrocarbon with a general molecular formula CnH2n-2.

Alkynes show a high degree of unsaturation than alkenes, hence, they are chemically more reactive than the corresponding alkenes or alkanes.

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

ALKENES I

UNSATURATED HYDROCARBONS These are hydrocarbons in which carbon atoms join with each other by multiple bonds.  The multiple bonds can be double bonds e.gAlkenes or…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

ALKANES

The alkanes are aliphatic hydrocarbons. Their general molecular formula is CnH2n+2. Hence For n=1 CH4               Methane n=2 C2H6 Ethane n=3 C3H8 Propane n=4 C4H10 Butane…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

INTRODUCTION TO ORGANIC CHEMISTRY

Organic chemistry is the chemistry of carbon compounds with the exception of compounds such as carbon (II) oxide, carbon (IV) oxide the trioxocarbonate (IV).Carbon has…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

ACID/BASE REACTIONS

TITRATION There are two types of quantitative analysis namely: volumetric and gravimetric analysis.  Volumetric analysis is based on volume measurement while gravimetric analysis involves direct…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

MASS/VOLUME RELATIONSHIP

A mole is a number of particles of a substance which may be atoms, ions, molecules or electrons. This number of particles is approximately 6.02 x 1023 in magnitude and is known as Avogadro’s number of particles.

 

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

SOLUBILITY AND SOLUTIONS

A solution is a uniform or homogenous mixture of two or more substances. Solution = Solvent + Solute A solute is a dissolved substance which…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

WATER

Water is regarded as the universal solvent.  It is a good solvent for many substances.   SOURCES OF WATER The following are the sources of…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

COMPOUNDS OF SULPHUR

HYDROGEN SULPHIDE, H2S Hydrogen Sulphide is found in volcanic gases, Sulphur springs, coal gas and natural gas. LABORATORY PREPARATION Hydrogen Sulphide is prepared in the…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

SULPHUR | USES, PROPERTIES, GROUP VI ELEMENTS

GENERAL PROPERTIES OF THE SULPHUR GROUP (GROUP VI ELEMENTS) The group VI elements include: Oxygen, Sulphur, Selenium, Tellurium and Polonium. Metallic property increases down the…

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Chemistry
Posted in SS 2 Chemistry (1st, 2nd & 3rd term) Chemistry

COMPOUNDS OF NITROGEN

OXIDES OF NITROGEN NITROGEN (I) OXIDE, N2O Nitrogen (I) oxide is known as laughing gas as it causes uncontrollable laughter when inhaled. LABORATORY PREPARATION The…

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