Abstract Molar volume is the volume that one mole of gas occupies when temperature and pressure are kept constant. The molar volume of a gas can be determined through evaluating how much gas is given off when the number of moles of the substance is known. To find the volume of gas that will be used to calculate the molar volume‚ the process of water displacement can be used. Reference Citation Cesa‚ J. (2002). ChemTopic labs: Experiments and demonstrations in chemistry (vol. 9). Batavia
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literally be nothing and the galaxy wouldn’t exist. Also‚ science helps us figure out and solve complex problems like preventing accidents such as the Hindenburg blimp accident. Overall‚ science is everywhere and in this essay I am going to discuss hydrogen and the Hindenburg blimp accident. Even though there are many elements on the periodic
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Hydrogen Selenide is toxic. It is made up of selenium which is also toxic‚ and hydrogen which is nontoxic. This substance is also colorless like hydrogen‚ but not like selenium which is a deep red color. There are reports of mine workers being poisoned by hydrogen selenide and selenium. Increasing industrial applications of selenium and the fact that workers may be exposed to Hydrogen Selenide have led authors to make a further investigation of the toxicity of this substance. The purpose of this
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following Complexes i. Hexamine chromium (III) hexacyano cobaltate (III) ii. Triammine chloroplatinium (II) ammine trichloro palatinate (II) iii. Tris (ethylenediamine) chromium (III) hexacyano cobaltate (III) iv. Potassium Hexacyano ferrate (II) 4. Describe the type of complex and hybridization of the following complexes i. [ Co F6]3- ii. [Cu (NH3) 4]2+ 5. a) The Complex Compounds [ Co (CN) 6 ] 3- and [Co (NH3)6 ]2+ have different colours
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Introduction: In liver cells‚ hydrogen peroxide is produced as a bi-product of some metabolic reactions. Hydrogen peroxide is a highly active chemical used in household products for bleaches and cleansing wounds. In a cell its build up would be highly toxic. However‚ liver cells contain an enzyme‚ catalase‚ which immediately breaks down hydrogen peroxide. It is a peroxidase and breaks up the toxic hydrogen peroxide to water and oxygen which are both nontoxic. The reaction is exothermic‚ meaning that
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Michigan entrepreneur Justin Eric Sutton brings us into the era of clean hydrogen energy and solar energy‚ by producing a remarkable high speed MAGLEV railway which is being sold throughout the USA for deployment on Elevated Superhighway Rails‚ it speeds travelers between metro areas at up to 250+ MPH‚ in this remarkable vision of the not so distant future! Not only would it revolutionize energy AND transportation‚ it is both feasible and deployable TODAY. All that remains is funding and agreements
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The North Korean state media released an official statement in December declaring a new weapon of mass destruction has been added to their arsenal: the Hydrogen bomb. In a statement released by a North Korean news agency on Tuesday‚ it was made clear that “the regime’s scientists are in high spirits to detonate H-bombs‚ capable of wiping out the whole territory of the US at once” (Vale). The testing of their alleged H-bomb was said to have occurred last Wednesday. Does North Korea have the right
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Calculating the Enthalpy Change of Reaction for the Displacement Reaction between Zinc and Aqueous Copper Sulphate Data Collection and Processing Observations: * Drops of water left on the inside of the measuring cylinder * Hole in the lid‚ possible escape route for gas or splash-back * The polystyrene cup felt warm during the reaction By extrapolating the graph we can estimate what the rise in temperature would have been if the reaction had taken place instantaneously. I can
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Determination of Reaction Enthalpy Shannon Wedepohl 9/17/13 Abstract: During this experiment‚ an ice calorimeter was used to measure the change in volume in milliliters of magnesium metal and 1.00 M of sulfuric acid. We found the experimental molar enthalpy of the reaction to be ∆H = -370 ± 1 kJ/mol at 0˚C. This compares with an expected value of -466.9 kJ/mol at 25 ˚C‚ a 20.75% difference. Introduction: Many chemical reactions truly only encompass changes by exchanging heat energy
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Lab – Solubility Curve for Potassium Nitrate I. Purpose: To plot a solubility curve for potassium nitrate in aqueous solution. II. Safety: Wear eye protection throughout the experiment. Be cautious of hot water. Wash hands if you come into contact with potassium nitrate. III. Procedure: 1. Carefully weigh out your assigned mass of potassium nitrate on a piece of weigh paper. Carefully pour the sample into the large test tube. 2. Add 20. mL of distilled water to the tube.
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