Chemistry Essay Examples

Qualitative Data When amidosulphuric acid was diluted with distilled water, the beaker feels cold. When the phenolphthalein indicator was dropped into the solution, the solution color does not change and remains clear. When the diluted amidosulphuric acid was titrated with the sodium hydroxide solution, the color of the solution turns to pale pink and it…

Urine is a typically sterile liquid by-product of the body secreted by the kidneys through a process called urination and excreted through the urethra. It is also an aqueous solution of greater than 95% water, with the remaining constituents, in order of decreasing concentration urea 9. 3 g/L, chloride 1. 87 g/L, sodium 1. 17…

The sun continuously undergoes atomic fusion to generate energy. The sun’s core contains hydrogen and can reach temperatures of 10-15 million degrees Celsius. The production of helium generates enough energy to support life on our planet. Various fusion reactions are used for energy production on Earth, with each chosen based on its suitability. Occurs between…

The History of Cosmetics. When is comes to ‘Cosmetic chemistry’ I think about …. what it is made up of: colour, preservatives, natural ingredients and what is best for the consumer. The latest edition of the Cosmetics Toiletries and Fragrance Association (CTFA) Dictionary lists more than 10,000 raw materials. Every year, hundreds of new ingredients…

Chemical machining ( CHM ) is a untraditional procedure in which stuff remotion occurs through contact with a strong chemical etchant. Applications as an industrial procedure began shortly after World War II in the aircraft industry. The usage of chemicals to take unwanted stuff from a workpart can be applied in several ways, and several…

The internal combustion engine is a very inefficient way to power a car. Most of the energy of the fuel is wasted creating heat. This heat, if not removed, will quickly cause the engine to get so hot that the metal parts will melt. The cooling system is there to remove that excess heat. As…

Effectively of Green Finger Pepper and Ethanol as an Alternative Insecticide A research project (to be) presented to the faculty of Cordillera Regional Science High School in partial fulfillment of the course lb Cordillera Regional Science High School Wang, La Trinidad, Bungee Bonnie B. Macaw Danville Dawned Causerie Dumpier Researchers Mrs.. Selene Grail Kimonos Research…

The element Bromine, is a red liquid which is explosive at room temperature and has a red brown vapour. It has an atomic number of 35 and an atomic mass of 79.909. The melting point of Bromine is -7 deg.C and the boiling point is 58 degC with a relative Bromine is a volatile dense…

My hypothesis is that dissolved Phosphate will change for the total phosphorus when left under a light. I believe that suspended phosphorus has the biggest impact on the eutrophication of lakes. When there is an increase of phosphorus in lakes, this leads to and increase in phytoplankton. This then leads to a decrease in water…

Radon is an element that is on the periodic table of elements. It is a member of the family called the noble gases, which is group number 18. Radon is a gas. It is a gas at 298 k. it is the heaviest known mononuclear gas at that temperature. Radon is also colorless. When it…