Chemistry Essay Examples

Mercury is the type of heavy metals that belonging to transition element series of the periodic table. It can be found in nature in three forms which are elemental, organic and inorganic form. Each form has its own profile of toxicity. Mercury is...

Climate change is recognized as a major environmental menace affecting the ecosystem globally. The rapid industrialization of the world's economy has resulted in the expansion of human-caused greenhouse gases such as carbon dioxide (CO2), nitric...

Internal combustion engines have become a compulsory and main part of our in daily life. It has been comprehensively deployed in various configurations for transportation such as vehicle, ships and motorcycles. The role of the internal combustion...

Introduction of solubility A substance is soluble in a fluid if it dissolves in that fluid . The dissolve means that a substance is solid, liquid, or gas becomes part of the fluid . When a solid powdered lemonade is dissolved in water and becomes...

Nylon-12 has a large number of applications in the fields of plastic industry including the preparation of films and also in the automotive industry to prepare oil- and gasoline-resistant tubes. Other applications include odor-free films in food...

3.1 Material and reagent 3.1.1 Plant materialGynura procumbens were purchased from HERBagus Sdn. Bhd. Penang, Malaysia. The Fresh leaves were harvested, dried in oven at 40degreesC and milled into powder.3.1.2 Reagent Ficoll (M.W 400,000) (Nacalai...

Aluminum alloys 6061 are commonly used in engineering application such as automotive parts and aircraft structure because of their excellent corrosion resistance, light weight, and good weldability. However, there is still undesired characteristics...

Since solvent extraction needs organic solvents that are pure only from limited aqueous miscibility, it is regarded as newcomer historically compared to another methods of chemical separation. Application of Solvent Extraction in IndustriesIn 1940s...

In the early stage of this practical, we had prepared Escherichia coli cells and we conducted protocols to make the cell be competent for transformation. E.coli was chose as many recombinant protein can be produced due to its simplicity to use...

In 2005, Matusova et al. described that SLs might be biosynthesized from a carotenoid pathway by utilizing a fluridone, and some carotenoid metabolism mutant that are carotenoid biosynthetic inhibitor. In 2008, two mutants of rice, d17 and d10...