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    Nitric Oxide (NO) and the Nervous System

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    Nitric Oxide (NO) and the Nervous System Better known as an environmental hazard, nitric oxide (NO) is produced in combustion engines and contributes to smog and acid rain and has been implicated in the catalytic destruction of the ozone layer (Lancaster;1992). Though NO is the bad-boy of the environment, it’s roles in the body are extremely diverse and in some instances can be deleterious or beneficial depending on the circumstances. NO has been connected with immune function, control of blood

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    Nitric Acid Essay

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    What is Nitric Acid? Whilst nitric acid has been known for a lot of time; its vicinity was first thought to have been recognized in the ninth century by an Arabian scientist and it has been alluded to by other ordinary names, for instance, 'water Fortis' and 'soul of nitre', in any case its 'move to reputation' began in the early periods of the twentieth Century. Nitric acid can be best delineated as the result of different compound reactions that create a dry dangerous and deadly mineral acid

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    Thiosulphate and Nitric Acid Planning Aim The aim of this investigation is to find out and observe how the temperature affects the rate of reaction. I am going to investigate the rate at which the solutions of nitric acid (HNO³) and sodium thiosulphate (Na²S²O³) turn cloudy (when mixed together), when the temperature is changed. Variables In this investigation I will only have one variable: § The temperature of both solutions (sodium thiosulphate and Nitric acid), so that

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    Nitric oxide is a naturally occurring molecule that has many biological and industrial functions. The molecule is made up of one nitrogen atom and one oxygen atom. It is considered a free radical, which means it has unpaired valence electrons, making it highly chemically reactive. It is not a very popular molecule in terms of how many people know what it is used for, but it has many subtle, important uses. Because nitric oxide is a naturally occurring molecule, it has been around since the beginning

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    Expansion on the Recent Discoveries Concerning Nitric Oxide as presented by Dr. Jack R. Lancaster Nitric Oxide, or NO, its chemical representation, was until recently not considered to be of any benefit to the life processes of animals, much less human beings. However, studies have proven that this simple compound had an abundance of uses in the body, ranging from the nervous system to the reproductive system. Its many uses are still being explored, and it is hoped that it can play an active role

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    free radical nitric oxide is an abundant intracellular messenger molecule that plays a central role in maintenance of health, and is heavily involved in signal transduction in various cells of the body [1]. This molecule acts as a mediator in the regulation of cardiac function as well as having an important role in regulating contractility of the heart and maintenance of vascular tone in the cardiovascular system. As one of the most significant individuals in our discovery of nitric oxide, Dr. Robert

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    three scientists for their contribution to the discovery of nitric oxide (NO) as a physiological singling molecule, particularly in vascular smooth muscle: Dr. Robert F. Furchgott, Dr. Louis J. Ignarro, and Dr. Ferid Murad1,2. Although the Prize was only initially awarded to Furchgott and Murad, it was later admitted that without the work of Ignarro an important link would not have been made. More specifically, in 1977 Murad found that nitric oxide was the active molecule causing vasodilation when studying

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    Acid Rain

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    Acid rain is a form of precipitation that contains high levels of sulfuric or nitric acids. In simple terms, acid rain is hail, rain, snow, or sleet that is more acidic than normal. Precipitation naturally is a little acidic but when the pH level drops below a set standard it is acid rain. In general, acid rain is a very complicated problem that is caused by many factors. In this paper, I will discuss how emissions caused by humans effect pH level in precipitation. First, I will define, in detail

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    2 Good ideas to control the rate of reactions 3 Briefly mention the factors that can change the rate of reaction such as: - Temperature Surface Area Catalyst Concentration I am going to find out if changing the concentration of nitric acid in water and see if it has any effect on changing the rate of which precipitate is formed when reacts with sodium thiosulphate. Prediction I think that a faster reaction will happen with a higher acid concentration as there will be more

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    --------------------------- In my experiment I am trying to find out how much acid it takes to neutralise a base to form a neutral solution. I will use one molar of Nitric Acid as the acid and one molar of Ammonium Hydroxide as the base. So this will be a 1:1 ratio. (Molarity = how many molecules of the acid or alkali per 1000 cm3 (1 litre) of water.) Nitric Acid + Ammonium Hydroxide à Ammonium Nitrate + Water ----------------------------------------------------------- HNO + NH OH NH NO + H O Ionic bonding

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