Acknowledgement I am thankful to my teacher mr. Harminder singh who had helped me in my work and showed me a path for doing it in correct way. Without his suggestions and guidance the term paper would not be as it is. It is worth mentioning here to thank our university that had provided us with a big library, in lack of that I was […]
Acknowledgement I am thankful to my teacher mr. Harminder singh who had helped me in my work and showed me a path for doing it in correct way. Without his suggestions and guidance the term paper would not be as it is. It is worth mentioning here to thank our university that had provided us with a big library, in lack of that I was […]
Introduction: Seifriz started his pioneering work about multiple emulsions since 1925, which is regarded as the fundamental knowledge in the later research. Multiple emulsions are complicated systems which are considered as “emulsions of emulsions” (Garti, 1996).In the outer continues phase, the droplets of the dispersed phase named as globules which contain even smaller dispersed droplets ,the globules are separated from each other in external continues […]
Introduction The periodic table is continually enriched with new elements synthesised by nuclear reactions in laboratories, but only 90 of all the elements occur naturally. Those are found between atomic numbers 1 to 92, which is from 1H to 92U, excluding the elements technetium (43Tc) and promethium (61Pm). The latter two are made artificially, even though technetium has been recently discovered in stars. All the […]
INTRODUCTION OF PHOTOGRAPHY Photography is defined as the science and art of producing an exact impression of an object on chemically prepared or sensitized material by using light. It depends on the sensitiveness of silver compound to light. The photographs are usually taken by means of a photographic camera. Camera is an instrument consisting of a light-tight box with a place for the light sensitive […]
Natural gas is one of the most important source of energy for reducing pollution and maintaining a clean and healthy environment we can call it as a future energy resource. In addition to being a domestically abundant and secure source of energy, the use of natural gas also offers a number of environmental benefits over other sources of energy, particularly other fossil fuels. This section […]
Introduction Substitution reaction of chemistry substitution reaction are also called displacement reactions .These are the reactions in which an atom or a group of atoms attached to a carbon atom in a molecule is replaced by some other atom or group of atoms without any change in the structure of the remaining part of the molecule. The product formed is known as the substitution product. […]
De volgende onderwerpen komen aan bod in dit hoofdstuk: Elektrolyten Netto Ion-vergelijkingen Soorten reacties Neerslag reacties Zuur-base reacties Redox reacties Elektrolyten: Als suiker (Sucrose) oplost, kun je daar de volgende moleculevergelijking voor opstellen: C12H22O11(s) à C12H22O11(aq) Als keukenzout oplost zie de vergelijking er als volgt uit: NaCl(s) à Na+(aq) + Cl-(aq) Het verschil is uiteraard, dat keukenzout splitst in de ionen Na+ en Cl- en […]
Aim: to find out how the amount of current affect the amount of copper deposited at the cathode during the electrolysis of copper sulphate with inert graphite electrodes Hypothesis: Michael Faraday’s first law of electrolysis states: “The mass of any element deposited during electrolysis is directly proportional to the number of coulombs of electricity passed” From this statement we can say that the amount of […]
Introduction Water that has not been purified is what is known as “hard water.” Hard water can contain substances like Ca2+, Mg2+, and Fe2+. These “hard ions” are not always unhealthy necessarily, but there are several good reasons that we remove them. First, they can combine with other compounds to form soap scum. Second, it can lead to the buildup of scale in pipes which […]
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