Saturday, March 25, 2017

WAEC TUTORIALS: Study Chemistry Online For Successful Exam - 2017/2018 Syllabus

Measurement Units Commonly Used in Analytical Work

As an analytical scientist your main concern would have been to report your findings in terms of what is present in your sample and in what amount. Most instruments

Understanding the Linearity of a Calibration Plot

The essence of a calibration plot is the linear relation between two variables. How do you decide the degree of linearity to rely on interpretations based on the calibration

Pure Substance in Chemistry...Criteria for purity

 Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is

STANDARD SEPARATION TECHNIQUES FOR MIXTURES

Most materials in our surroundings are mixtures of two or more components that 

can be physically seperated

Different categories of elements in the periodic table

The periodic table arranges all of the known elements in order of increasing atomic number. Order generally coincides with increasing atomic mass. The different rows of

THE PERIODICITY OF CHEMICAL ELEMENTS

A pattern of repeating order is called periodicity. In the mid-1800s, Dmitri Mendeleev, a Russian chemist, noticed a repeating pattern of chemical properties in elements.

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