Hydrogen Fuel Cells There are many reasons to look for new cleaner forms of energy. Fossil fuels‚ being non-renewable‚ will eventually run out. Pollution from burning fossil fuels destroys our environment. Hydrogen fuel cells could be used many places where fossil fuels are currently being used. Using hydrogen as a form of energy can not only reduce our dependence on imported oil‚ but also benefit the environment by reducing emissions of greenhouse gases and pollutants that affect our air quality
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Effects of Different Concentration of Catalyse on Hydrogen Peroxide Aim: In this investigation I will try to find how long it takes for the filter paper disc to rise up whilst varying the amounts of concentration of catalyse. Prediction: I predict that the lower the concentration of catalyse the longer it will take for the filter paper disc to rise to the surface of the tube. Equipment: 1. Hydrogen peroxide in a container 2. Flat bottom tube 3. Tweezers 4. Filter paper
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Purpose: The purpose of the lab was to investigate and demonstrate hydrogen bonding and London dispersion bonding in water and rubbing alcohol. Hypothesis: I believe water will have the greater surface tension because rubbing alcohol’s density is lower than water’s. Materials: * Water * Isopropyl alcohol (rubbing alcohol) * Pennies * Paper clips * Flasks * Cups or jars * Wax paper * Eyedropper Procedures: Part 1: Surface tension and vortex: * Fill
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Algae Could Solve World’s Fuel Crisis Von Philip Bethge Dan Robertson is working on algae that can produce biofuel. Genetically modified blue and green algae could be the answer to the world’s fuel problems. Bioengineers have already developed algae that produce ethanol‚ oil and even diesel -- and the only things the organisms need are sunlight‚ CO2 and seawater. For reasons of data protection and privacy‚ your IP address will only be stored if you are a registered user of Facebook and you
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RED is taking its knowledge of high-quality cinema cameras to the smartphone industry with a new product. The Hydrogen One is RED’s bet to revolutionize the use of smartphones. Back in 2006‚ when RED was founded and showed its intent on delivering high-performance digital cinema cameras with quality of 35mm film and the convenience of pure digital‚ many people were skeptical and some even considered it a “scam”. After a 10-years background of providing unique high-quality cinema cameras with high-usage
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SCHOOL OF PHOTOVOLTAIC AND RENEWABLE ENERGY ENGINEERING THE UNIVERSITY OF NEW SOUTH WALES Photovoltaic Powered Electrolysis: Hydrogen production for transport applications by Joseph Robert Grisold Submitted for the degree of Bachelor of Engineering (Hons) Bachelor of Engineering in Photovoltaic Engineering Course Code: 3656 Submission Date: 12pm‚ Tuesday the 29th October 2013 Supervisor: Dr. Gavin Conibeer Assessor: Dr. Kondo-Francois Aguey-Zinsou i Statement of Originality
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Symbol H+ Li+ Na+ K+ Rb+ Cs+ Be2+ Mg2+ Ca2+ Sr2+ Ba2+ Ra2+ Zn2+ Symbol Cu+ Cu2+ Fe2+ Fe3+ Sn2+ Sn4+ Cr2+ Cr3+ Mn2+ Mn3+ Symbols and Charges for Monoatomic Ions Name Symbol Name hydrogen ion H¯ hydride lithium ion F¯ fluoride Note that the sodium ion Cl¯ chloride letters in an ion’s potassium ion Br¯ bromide name before the rubidium ion I¯ iodide -ide ending is 2¯ cesium ion O oxide the stem. For 2¯ beryllium ion S sulfide example‚ the stem
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* MORE IMPORTANT TO HAVE A LOW BOND THAN BRANCH * -ene (double bond)‚ -yne (triple bond)‚ -anol (oxygen then hydrogen)‚ chloro/bromo/fluoro/iodo- (halogen)‚ amino- (nitrogen)‚ -anoic acids (one oxygen with a single‚ one with a double bond) * If there is a double or triple bond write it just before ene or yne. Eg. But-2-ene * If naming an alcohol (an oxygen and a hydrogen)‚ if there is a double or triple bond‚ -anol becomes‚ for example‚ -ene-2-ol or –yne-3-ol * Make sure you write
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the base. H+(aq) + OH-(aq) H2O(l) When a weak acid is neutralised some of the energy is needed to dissociate the molecules to make the hydrogen ions available for neutralisation. The result is a value for neutralisation enthalpy lower than - 57 kJ/mol (numerically lower‚ not more negative!) Note that as the weak acid is in equilibrium as the hydrogen ions are ’mopped up’ by the base the equilibrium shifts to the right hand side to make more until eventually all of the acid is able to react
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| n-nonane | 35 | -54 | 151 | C10H22 | n-decane | 75 | -30 | 174 | The simplest organic compounds are hydrocarbons. Hydrocarbons contain only two elements‚ hydrogen and carbon. A saturated hydrocarbon or alkane is a hydrocarbon in which all of the carbon-carbon bonds are single bonds. Each carbon atom forms four bonds and each hydrogen forms a single bond to a carbon. The bonding around each carbon atom is tetrahedral‚ so all bond angles are 109.5°. As a result‚ the carbon atoms in higher alkanes
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