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    Investigating Rate of Reaction between Iodide ions and Peroxodisulphate ions with respect to Temperature and use of a Catalyst Introduction The aim of this experiment was to investigate the affect of the use of a catalyst and temperature on the rate of reaction while keeping all the other factors that affect the reaction rate constant. In the reaction, potassium peroxodisulphate and potassium iodide will be used to provide the peroxodisulphate ions and iodide ions respectively. The ionic formula for the

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    Concentration of Sodium Chloride Ions in a Solution Prediction If I double the concentration of Sodium Chloride ions in a solution the current that can flow through the circuit will also double. Controlled Variables * Temperature: Room temperature-15ºc * Voltage: 6V * Volume of water: 200cm³ * Equipment: see diagram Diagram ======= How to make the concentration * 0.5M = 5.85g in 200cm³ * 1M = 17g in 200cm³ * 1.5M = 22.85g in 200cm³ * 2M = 34g in 200cm³

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    ION EXCHANGE RESIN Ion exchange resin works by removing ionized species from water by exchanging these species for H+ and OH- ions. These resins have minute pore size of around 1 mm with large sites for ionic groups to exchange in the resins. The method on how the ion exchange resin works and regenerated is as illustrated in Figure 1.1. Figure1.1: working cycle of ion exchange resin Currently, there are two methods for ion exchange to work where one is a batch and the other is a column method. For

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    Testing the Performance of an Ion Chromatography Column Ion column chromatography is used to separate both cations and anions. The separation of ions is performed by using an ion exchange resin (this lab uses an anion exchange resin which is a high molecular weight polymer). The amount of time required for certain ions to move through the column depends on the affinities of the ions. The mobile phase’s anions, sodium bicarbonate in this lab, will force the ion that’s being tested out of

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    Essay On Ion Transport

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    Ion transport thorough nanoscale pores is a common process in various biological phenomena. Ion channels, in particular, play an important role in physiological functions such as the generation of electrical activity in nerves and muscle, volume regulation of cells, intracellular signaling and so on. Malfunctioning channels have been linked to wide range of diseases. For instance, abnormal sodium channels in membranes of muscle cell cause Hyperkalemic Periodic Paralysis and abnormal potassium channels

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    environments have been reported [????]. It is claimed that the fluoride containing solution with fluoride ions more than 20 ppm may destroy the protective oxide la... ... middle of paper ... ...tive layer increases. 5. Conclusions The corrosion resistance of NiTi was studied in ringer’s solution for different chloride ion concentrations. Our results show that the increasing of the chloride ion concentration can accelerate the corrosion of NiTi alloy. The OCP values in KCl and NaCl contained solutions

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    This reaction involves the oxidation of iodide ions to iodine molecules which are soluble in water and are visible as a pale brown clear solution. The formation of the iodine can easily be detected because all other species in the reaction mixture are colourless. The addition of starch to the reaction mixture further enhances the colour change by forming a dark blue-black complex with the iodine. The overall ionic equation is: (the spectator ions K+ have been left out to see the electron transfer

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    Ion Channel Effects

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    Ion Channel Effects The drug Prozac, otherwise known as Fluoxetine, has been believed to cause few side effects in general. Evidence also indicates that fluoxetine has various additional effects on several ion channels within the brain. Fluoxetine has demonstrated exerted effects on a variety of ion channels, the drug inhibited K+ and Na+ currents in lens and corneal epithelium, and the inhibitory effects of fluoxetine on ionic currents (Hahn, 1999). This suggests that since local concentration

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    Electric Ion Thrusters

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    introduction of the electric ion drive (ion thruster) recently has helped accelerate development and information gathering in space. The first to even publish the idea of electric propulsion was the Russian scientist Konstantin Tsiolkovsky in 1911. There are notes, however, to indicate that the man Robert Goddard first proposed the idea in 1906. Early experimentation took place at Clark University by Goddard himself around 1916. Years later, in 1959, a functional electrical ion thruster was produced by

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    Ion Channels Affected by LSD

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    Ion Channels Affected by LSD Research with LSD has been very limited by two major factors: lack of human subjects and laws against it as a controlled substance. These deterrents have caused a big hole in what can be discovered about this hallucinogen at the ion channels it affects and in turn those effects on inhibitory and excitatory potentials of the cell. It was difficult to obtain clear explanations about exactly what was going on at the neuron level. Later it was discovered that

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