Amino acids are the basic structural units of proteins. Amino acids are organic compounds which contain both an amino group and a […]
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Category: Chemistry
Free Chemistry online learning lesson notes and videos for Secondary school and High school students. The lesson notes, videos and interactive slideshows are built on curriculum that is designed to meet national and international O’ Level standard for Senior High School or Senior Secondary school students (SS1, SS2, SS3 or SHS1, SH2, SH3) and Grade 9, Grade 10, Grade 11 and Grade 12 students.
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Fats and Oils
Fats and Oils Fats and oils are naturally-occurring esters of three long carboxylic acids called fatty acid with a special type of alcohol called glycerol ( propane- […]
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Alkanoates or Esters
https://www.youtube.com/embed/BBPA2NzMWUE?start=24Alkanoates or Esters Ethyl Ethanoates All esters are similar chemically although they may vary in degree of reactivity. Ethyl ethanoate […]
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Identification of gases and ions
Identifying Gases Oxygen (Glowing wooden splinter) A glowing wooden splinter is inserted into the test tube that contain the gas. […]
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Heating effect on carbonate salts
Heating Effect on Carbonate Salts All carbonates salts except potassium carbonate and sodium carbonate can be decomposed by heat to […]
Identification of Ions There are 10 cations and 4 anions to be studied: Cation Sodium Na+ Iron (II) Fe2+ Calcium […]
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Titration calculation 2
A titration calculation The method for titration calculations is the one you have used for mole calculations already: Write a […]
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Solubility of substance
Solubility of substance The term solubility refers to the maximum amount of material that will dissolve in a given amount […]
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Volumetric analysis – Titration
Introduction Volumetric analysis is an analytical method or procedure for working out the titre or concentration of an analyte in […]
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Fractions of Crude oil
Petroleum gases – These gases are liberated at the top of the column at temperatures below 40o They are mainly […]