NH3 H2O - NH4OH can be a very useful to the society because by keeping an eye out for this synthesis reaction‚ chemical technicians are able to identify ammonium hydroxide in water accessed by people and prevent people from being in contact with toxic water. Ammonia takes the form of gas at room temperature. It is a colourless gas with an irritating odour. Ammonias melting point is at -77 degrees Celsius and its boiling point is at -33.35 degrees Celsius. This covalent compound is corrosive to
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My hypothesis is that if I turn the water to vapor then I will be able to determine the ratio and the amount of moles of the salt and water. This is because by using evaporation I will be able to learn the mass of the salt and of the water needed for n=m/MM which states the amount of moles can be found by dividing mass of the moles by the molar mass. Experiment 1 First I took a crucible‚ a balance‚ and a Bunsen burner and placed them onto the workbench. Then I measured the mass of the empty crucible
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1. Ozone (O3) in the atmosphere can react with nitric oxide (NO): O3(g) + NO(g) ( NO2(g) + O2(g)‚ with (H( = -199 kJ/mol‚ (S( = -4.1 J/K·mol. Calculate the (G( for this reaction at 25(C. A. 1020 kJ/mol B. -1.22 ( 103 kJ/mol C. 2.00 ( 103 kJ/mol D. -1.42 ( 103 kJ/mol E. -198 kJ/mol 2. For the reaction H2(g) + S(s) ( H2S(g)‚ (H( = -20.2 kJ/mol and (S( = +43.1 J/K·mol. Which of these statements is true? A. The reaction is only spontaneous
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Introduction: On a daily‚ millions of food products are exchanged and bought around the globe. Every person trusts that the Nutrition and Drug Label rely the proper information so they can make healthy and wise decisions about the food entering their body. This is essential to people who suffer from diabetes or other serious health problems. For consumers with high blood pressure‚ the incorrect salt intake can be deadly. However‚ the Food and Drug Administration allows there to be a twenty percent
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law In law‚ a sentence forms the final explicit act of a judge-ruled process‚ and also the symbolic principal act connected to his function. The sentence can generally involve a decree of imprisonment‚ a fine and/or other punishments against a defendant convicted of a crime. Those imprisoned for multiple crimes‚ will serve a consecutive sentence (in which the period of imprisonment equals the sum of all the sentences)‚ a concurrent sentence (in which the period of imprisonment equals the length
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TASK 1 Explain the reference to legal principle and relevant case law‚ the legal aspect of placing the ‘Klick’ clock in the shop window with a price tag attached. Ann antiques has a rare ‘Klick’ clock on its shop with price tags of €1‚000 attached. In spite of its wording the sign in the window does not constitute a legal offer‚ it is merely an invitation to treat. Invitation to treat is an indication that the person who invite is willing to enter into a negotiation but it is not yet prepared
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Beer’s Law And Calorimetry Beer’s Law And Calorimetry Adriane Bellard Ocean County College Beer’s Law is also referred to as the Beer- Lambert law or the Bouguer- Beer Law. The principle is based on an electromagnetic radiation that is passed through a sample‚ wavelength is detected by the sample. As a result strength of transmitted light is gradually reduced. The measurement of the reduced strength of radiation is supported by the spectrophotometer. Based on Beer’s Law the strength
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The experiment was done twice in trial 1 and 2. First‚ in the first trial‚ the crucible with lid was measured on a balance and the mass of them was recorded in grams which is m of clean crucible = 22.89g . This was followed by weighing the crucible with 0.3 g of Magnesium on a balance. The total mass of mg with the crucible was recorded which was m total mass mg + Crucible = 23.19g. Then the magnesium was heated using a Bunsen burner‚ and we put the crucible with Mg on a clay triangle using tongs
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The law of “Stand Your Ground” deals with a self-defense law which is for giving the individual rights for making use of deadly force which are for defending themselves without any kind of requirement of evading or retreating from any dangerous situation. Stand Your Ground is a law which places non obligation at all on the potential victims of any crime for retreating and calling the law enforcement personnel. This research is going to deal with the particular law of “Stand Your Ground law”; this
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2/28/2013 Introduction: Hess ’s law is a terminology in chemistry named after Germain Hess‚ a Swiss-born Russian chemist and physician who published it in 1840. The law states that the total enthalpy change during the complete course of a reaction is the same whether the reaction is made in one step or in several steps. Enthalpy cannot be directly measured‚ but rather the change in enthalpy. Enthalpy is described as the change in kinetic and thermal energy. Hess’s law states that the enthalpy change
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