The 60 pages long PDF document comprises Chemistry Practical Guide. The document was compiled and prepared by a professional chemistry teacher in Kenya who is also a seasoned KNEC examiner (Chemistry Paper 3). The document is a detailed Chemistry Practical manual book intended to help KCSE candidates revise for Chemistry Paper 3 and boost their grades. Teachers can also use the document to facilitate revision amongst their learners. It is colored to stimulate learners to make use of it. As a parent, you can download the notes to boost your candidate's grades in Chemistry Paper 3.
The material contained in this booklet does not extend the curriculum specification content. Rather it seeks to help the candidate succeed in practical examination by explaining in more depth what is required of him or her in carrying out the exercises, making observations and measurements with appropriate precision and recording these methodically. This booklet advises candidate on how he or she should interpret, explain, evaluate and communicate the results of the exercises clearly and logically using relevant chemical knowledge and understanding and using appropriate specialist vocabulary.
The chemistry practical notes are neatly organized as follows. First, the document starts with an introduction that includes explaining to the candidate how to use special laboratory apparatus and techniques. Some of these apparatuses include the burette, volumetric flasks, pipette, etc. It then delves into general experimental processes the candidate should expect, such as titration, and transferring a mixture or a solution. Afterwards, it provides an in-depth explanation of common laboratory experimental procedures, such as the determination of pure substances, determination of density, separation of mixtures, heating and burning different substances, rate of reaction, and more. The notes also touch on general examination requirements, such as apparatus list, accuracy, calculations, graphs, and more. General notes on qualitative and quantitative analysis in chemistry are also provided, with greater emphasis on procedures like titration, molar solutions and volumetric analysis, etc.
The main advantages of using this booklet include the fact that it is comprehensive, and it is compiled based on previous KCSE chemistry practical examinations in Kenya. That means learners can use it as a reliable resource for improving their Chemistry Paper 3 grades.
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