Solubility equilibrium

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  • Water Temperature Affecting Aquatic Organisms

    Temperature is one of the water characteristic or more precisely one of the physical water parameters. Water temperature affects almost all other water quality parameters. It plays a key role in aquatic life and habitations. Thus, the fluctuation of temperature controls what aquatic kind will live and bloom in the water body. Water temperature can also affect “the metabolic rates and biological activity of aquatic organisms”. Therefore metabolic rates of aquatic organisms is directly…

    Words: 1545 - Pages: 6
  • Chemical Equilibria Lab Report

    Solubility increases with high temperature and more agitation (stirring). The less the solution is stirred or if there’s a decrease in temperature, the solution becomes less soluble and forms a solid at the bottom of the solution. The forward reaction is endothermic because the deltaHrxn was positive, meaning that the solution was absorbing heat rather than releasing heat. An increase in Kc shows the increase of solubility in borax solution. If there’s a decrease…

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  • Light Exposure Affects Photosynthesis Essay

    gradient and diffuses into the water until equilibrium is reached. According to Henry’s law the dissolved oxygen content of water is proportional to the percent of oxygen (partial pressure) in the air above it. As oxygen in the atmosphere is about 20.3%, the amount of dissolved oxygen at 100% saturation at sea level at 20° C is 9.03 mg/L (Christine Kemker,2013). 100% saturation is not the maximum amount of solute in a solvent, it is the point of equilibrium. This means that the concentration…

    Words: 1713 - Pages: 7
  • Analysis Of Atorvastatin

    Color b) Odour c) Taste Physical Appearance The appearance of the API was done by visual observation Solubility Studies Solubility profiles of Atorvastatin were done by solubility equilibrium method. It is done by stirring an excess of drug in the solvents water, methanol, ethanol isopropyl alcohol for a prolonged period until equilibrium is reached. It is also done in various concentrations of pH buffers. Bulk density:…

    Words: 1621 - Pages: 7
  • Polymerization Of Ricinoleic Acid

    3.1 Effect of reaction time period The time course is a good indicator of catalyst performance and reaction progress. It helps pinpoint the adequate time necessary to obtain the best yield and minimize the process cost. Figure 1 shows the acid value profile of Sn(Oct)2 catalyzed synthesis of PRA. As the reaction progressed, the hydroxyl group of one monomer reacted with carboxylic group of another monomer to form oligomer and then the chain was lengthened to polymer. This was indicated by a…

    Words: 980 - Pages: 4
  • Esters Lab

    and alcohol both dissolve and are tucked safely away under the ester layer (Clark, 2004). In terms of molecular structure of the esters can be both soluble and insoluble. The small esters are fairly soluble in water but solubility falls with chain length. The reason for the solubility is that although esters cannot hydrogen bond with themselves, they can hydrogen bond with water molecules (ChemGuide, 2004). Due to slightly positive hydrogen atoms in a water molecule can be adequately bond to any…

    Words: 1307 - Pages: 6
  • Essay On TPGS Concentration And Paclitaxel Solubility

    Figure 2.1.3 TPGS concentration and Paclitaxel solubility are directly related. Figure created by M. Varma, 200522. TPGS has been incorporated into various drug formulations partly because of its ability to overcome multidrug resistance (MDR). By inhibiting P-glycoprotein (P-gp) activity, the relative cytotoxicity of drugs such as doxorubicin, vinblastine, and paclitaxel was increased19. P-gp is a drug efflux pump, a.k.a. multidrug resistance protein 1 (MDR1), located in the cell membranes of…

    Words: 828 - Pages: 4
  • H1 Antihistamines Research Paper

    Symptoms of allergy can be treated with H1 antihistamines. The purpose of treatment is to prevent histamine to stimulate the receptors, why they consist of the same core structure as histamine . These H1 antihistamines constitute the second most commonly used class of medications after antibiotics and there are many varieties used in different conditions . H1 antihistamines are classified into six groups: ethanolamines, ethylene diamines, alkylamines, piperazines, piperadines, and phenothiazines…

    Words: 543 - Pages: 3
  • Fick's First Law Of Diffusion And The Penetration Of Polymers

    different locations of the system (Zeman and Kubik, 2007). Whereas, the solubility, S, can be defined as the amount of gas dissolved into the polymer divided by the volume of sample for 1 atm of gas on the sample surface. (2.26) When, , , then the above equation can be rewritten as and when p1 = 1 atm (2.27) Where, c1 is the concentration in the sample when the equilibrium is reached. The solubility S is expressed in cm3 of gas at STP per cm3 of the solid at a pressure…

    Words: 2290 - Pages: 10
  • Desulphurization Of Steel Case Study

    Introduction Desulphurization of steel at ladle treatment of metal is one of the important technological operations. The successful course of the desulfurization process is provided by fire refining slag with specific chemical composition, usually based on calcium oxide. The duration of mixing of the metal with the slag in inert gas, the early formation of refining slag, then optimization of the metal oxidation providing the formation of iron oxide FeO in the slag to be less than 0.5 % able…

    Words: 1266 - Pages: 6
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