Chemistry Study Materials

CHM 310- Polymer Chemistry

Polymers form a very important class of materials without which life would have been very difficult. They are all around us in everyday use, in rubber, in plastic, in resins and in adhesives and in adhesive tapes. Polymers are giant molecules of higher molecular weight called a macromolecule which are built up by linking together of a large number of small molecules called monomers. The reaction by which the monomers combine to form polymers is called Polymerisation.

CHM 313- Green Chemistry

Green chemistry is the design of chemical products and processes that reduce or eliminate the use or generation of hazardous substances. Green chemistry applies across the life cycle of a chemical product, including its design, manufacture, use, and ultimate disposal. Green chemistry is also known as sustainable chemistry. This is unlike cleaning up pollution (also called remediation), which involves treating waste streams (end-of-the-pipe treatment) or cleanup of environmental spills and oth...

Chemistry of Colloid- CHM 232

   The colloid is said to be stable when particles remain suspended in the solution without settling down i.e. the dispersed phase. Stability is hindered by aggregation and sedimentation phenomena, which are driven by the colloid’s tendency to reduce surface energy. In order to stabilize the colloidal system, we need to reduce the interfacial tension between the colloidal particles. Aggregation is due to the sum of the interaction forces between particles. If attractive forces (such as v...

CHM 232- Physical Chemistry

In this method, small solute particles are condensed to form a dispersed phase particle.Examples include the following:1. Chemical methods:   a) By oxidation:Colloidal sulphur can be obtained by passing oxygen gas through a solution of hydrogen sulphides. In this method any oxidising agent like HNO3, H3Br2 can also be used.ž  2H2S + O2 → 2H2O + 2S (Sulphur sol)   b) By double decomposition:A solution of arsenic sulphide is obtained in this method. In this process hydrogen sulphide i...

CHM 313- Environmental Chemistry

Water analysis is a process carried out to identify and quantify the chemical components and properties of water samples. The type and sensitivity of the analysis depend on the purpose of the analysis and the anticipated use of the water. Chemical water analysis is carried out on water used in industrial processes, on waste-water stream, on rivers and stream, on rainfall and on the sea, In all cases, the results of the analysis provide information that can be used to make decisions or to pro...

CHM 121 Foundation Chemistry Study Note

Introduction Atomic Theory of Matter Assignment Discovery of the Sub-Atomic Particles The Electron The Proton Rutherford Model of Atom The Neutron Atomic Number/Mass Number/Isotopes Emission Spectra The Bohr Atomic Model Exercises Atomic Spectrum of Hydrogen Quantum Theory of Atomic Orbitals Principal Quantum Number Azimuthal OR Subsidiary Quantum Number Shapes of Orbitals Magnetic Quantum Number Spin Quantum Number Electronic Configuration of Atom Pauli’s Exclusion Principle Hund’s Rule ...

CHM 121: Foundation Chemistry I Exam Questions and Answers 2017/2018

FACULTY OF SCIENCE DEPARTMENT OF CHEMISTRY 2017/2018 FIRST SEMESTER EXAMINATION


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